The courtly steel of Kamakura Kyōto. From the mid-Kamakura period the Rai school rose to become the most prosperous of the Yamashiro lineages — its aesthetic devised by Rai Kuniyuki and perfected by his son Kunitoshi, the first to sign with the character 来. Its hallmark is a luminous, tightly forged jigane laden with ji-nie and clear nie-utsuri, tempered in a calm, crystalline suguha. In Rai Kunitsugu — "Kamakura Rai", counted among the Ten Great Disciples of Masamune — the school drew the vigorous Sōshū manner into its refined Kyōto idiom.
The The Yamashiro Rai School (来), active 1250–1370 in Yamashiro Province across 74 documented smiths: 10 Kokuhō (National Treasures), 65 Jūbun, 82 Jūbi, 115 Tokubetsu Jūyō, 709 Jūyō.
Phase 1 · The Yamashiro Rai School (来) · 1250 – 1370
Kunimitsu (國光) — Mainline · 1326-1351. Kokuhō, Jūbun, Jūbi, Tokujū, Jūyō. The dated works of Rai Kunimitsu (来国光) run from Karyaku 1 (1326) to Kan'o 2 (1351), carrying the Rai school of Yamashiro from the close of the Kamakura period into the early Nanbokucho period. By the prevailing tradition he is transmitted as a son of Rai Kunitoshi, by some accounts a pupil, and the published sources observe that the smith with the most surviving works in the school is Kunimitsu himself. Their constant judgment reaches further: he is "the most versatile smith of the Rai school, the one with the widest working range" (来派の中で最も作域の広い器用な刀工). The notes enumerate that range: beyond the traditional true suguha of the Kyoto line, there are works on a suguha base mixing ko-gunome and ko-choji, works in suguha with a slight ko-midare tendency, works in a notare tone mixed with gunome, and works whose midare is dominated by gunome, spread across tachi, tanto and ko-wakizashi of equally varied form.
His most numerous work is the wide, robust osuriage katana, unsigned yet keeping the deep, evenly arched curvature the published record calls wazori, the chu-kissaki often a little extended. On these blades the temper is a chu-suguha or hiro-suguha within which ko-gunome and ko-choji stand apart; ashi and yo enter thickly, and the nioiguchi runs deep, bright and clear. Ko-nie adheres richly, kinsuji and fine sunagashi pass through the ha, and the boshi is sugu with a komaru turnback. The conspicuous presence of gunome within the suguha is the recognition point the sources state outright, the feature that separates his hand from Kunitoshi and Kuniyuki; of one such katana the NBTHK writes that these features "clearly manifest the characteristic traits of Rai Kunimitsu."
The jigane is constant beneath all of his manners: a tightly packed ko-itame under thick, dust-fine ji-nie, with fine chikei woven in and a nie-utsuri standing in the ji, the steel bright and clear. Here and there a softer patch of hada appears, the so-called Rai-hada, which the record treats as a tell of the school rather than a fault. On the Karyaku 2 dated tanto the notes describe the nie-utsuri near the fukura taking on a yubashiri-like appearance, entering as though drooping down toward the tempered edge, an aspect frequently encountered not only in his work but throughout the Rai group.
His tanto carry the two poles of the range most plainly. The small ones with uchizori, often bearing the simple, skillful suken and gomabashi carvings the record calls most frequent in his work, follow the father so closely, down to the hardening over the machi, that they pass at first sight for Kunitoshi; a slender suguha blade of this class is read as early work. The large ones run wide, sunnobi and nearly without sori, and on them he tempers his midare, notare mixed with gunome or gunome-dominant patterns, in nie a step stronger than on his tachi; these, the sources write, resemble the work of his junior fellow pupil Rai Kunitsugu, being "tinged with the color of the Soshu tradition and filled with bold spirit" (相州伝的色彩をおびて覇気に満ちている). The tanto dated Karyaku 2 (1327) shows the manner already formed, and the largest of the class is the meibutsu Aratami Rai (新身来). The signatures follow the forms: "on tachi the mei is comparatively small" (太刀は比較的に小銘であり), cut low on the tang toward the mune, while on tanto a bold three-character mei is placed below the mekugi-ana; his character for Rai, the record adds, is cut in a form differing from that used by Kunitoshi. A chronology of the mei is established: those of the Karyaku and Gentoku years have a softness, the enclosing kuni component characteristically rounded, while those of Jowa and Kan'o harden and the enclosure turns angular. The long working span and these changes of style and signature sustain an argument for a first and a second generation, which the Kokon Kaji Meizukushi divides around Gentoku to Kenmu and around Koei; yet the single-generation view remains strong, and the published sources leave the question as one that should await further study.
Set beside his father, the judges' formula is exact: compared with Kunitoshi he yields a little in the point of dignity, but gives the impression of surpassing him in force (迫力では優る感がある). His nie runs somewhat stronger, and the chikei in the ji together with the kinsuji and sunagashi in the ha lend the work its vigor. Beside Rai Kuniyuki he lacks the elder smith's expansiveness: the yakiba sits a shade tighter, ashi crowd in, and the boshi tends toward a point. The wide midare tanto can pass at a glance for Rai Kunitsugu, and there the record draws the line in a single sentence: against Kunitsugu his hardening sits a touch lower, and in the sharp boshi with its thrusting tendency (突き上げ気味のするどい帽子) the individuality of this smith can be discerned. Even his standard suguha can momentarily suggest the Enju offshoot; of one such blade the notes say it can at first glance be confused with Enju, but on careful examination proves a step superior. With Kunitsugu he carries the Soshu-tinged manner that closes the Rai mainline into the Nanbokucho period.
Fujishiro grades him Sai-jo saku, and 249 designated works stand on record: three National Treasures and twenty Important Cultural Properties, preserved as patrimony in museums, shrines and long-held collections, with twenty-three Juyo Bijutsuhin and 197 blades in the Tokubetsu Juyo and Juyo tiers beneath them. Signed and unsigned works survive in nearly equal numbers, the tachi mostly osuriage and mumei, the tanto largely ubu and signed. Fifty-seven blades carry recorded provenance, and the roll is of the first rank: a tachi the record calls "a tachi worn by Ieyasu, treasured in the Tokugawa house together with the Honjo Masamune" (徳川家では本庄正宗と共に大事にされた家康佩用の太刀である); heirlooms of the Kishu, Owari and Mito Tokugawa, the Date of Sendai, the Maeda of Kaga, and the Kuroda, Shimazu, Asano, Hosokawa, Ikeda and Satake houses, with pieces from the Imperial Family; among the Hon'ami appraisals that follow them is an origami of Genroku 3 (1690) by Hon'ami Kotsune valuing one Owari Tokugawa blade at 500 kan. Holders recorded against his blades today include the Tokyo National Museum, the Kyoto National Museum, the Tokugawa Art Museum, the Sano Art Museum and the Seikado Bunko Art Museum. For the private collector he is not wholly beyond reach: blades in the Tokubetsu Juyo and Juyo tiers remain in private hands and one appears on the market from time to time, though for a name of this rank such an appearance is infrequent, and an event when it comes.
Kunitoshi (國俊) — Mainline · 1288-1319. Kokuhō, Jūbun, Jūbi, Tokujū, Jūyō. The published sources open Rai Kunitoshi's record with a single settled fact: he was "the first smith of the Rai line to crown his name with the character Rai, and all who followed took the practice from him" (来派で最初に来の字を冠した刀工で、以後皆これに倣った). Traditionally the son of Rai Kuniyuki, he worked in Kyoto at the close of the Kamakura period. Dated blades open in the Shoo and Einin eras, fall silent for a time, then resume in Showa and continue through Bunpo, Gen'o and Genko; a tachi of Showa 4 (1315) in the Tokugawa Art Museum bears the age inscription seventy-five (七十五歳), and a work of Genko 1 (1321), cut at eighty-two, stands near the end of his production. This run of dated pieces is the backbone of the late Kamakura Rai chronology.
His hand is the Rai mainline at its most refined. The tachi are slender or of standard width with a pronounced taper, the curvature koshi-zori, turning to a rounded wa-zori on shortened blades, and the point small or medium. On this body he burns a chu-suguha or hoso-suguha in ko-nie with ko-choji and ko-gunome mixed in; ashi and yo enter well, at times slanting toward the nakago in the Kyoto manner the published sources call kyo-sakaashi. Nijuba appears in places, fine kinsuji and sunagashi run through the ha, and the nioiguchi is tight and bright; the boshi turns in a calm ko-maru, the tip lightly swept. The judgment the published sources attach to the whole is consistent: "a refined and calm manner that is Kyoto work through and through" (いかにも京物らしい上品で穏やかな作風).
The jigane carries as much of the attribution as the hamon: a tightly knit ko-itame with thick, often dust-fine ji-nie, fine chikei, and a nie-utsuri standing clearly over it; one Juyo appraisal adds that "the refinement of the jigane in particular deserves special mention" (殊に地鉄の精良さは特筆される). Here and there the larger, softer patches the texts call Rai-hada (来肌) intrude, and on tanto the hada may flow toward masame in places, both accepted as marks of the school rather than flaws. The packed ko-itame, the fine nie over it and the standing utsuri are what the appraisals return to whenever an unsigned blade is settled on his name.
Nearly half of his published record is tanto: the sources state again and again that where the two-character Kunitoshi left a single example, the meibutsu Aizen Kunitoshi, Rai Kunitoshi left many. These are hira-zukuri and mitsu-mune, of standard width or slightly elongated, with the quiet uchi-zori of the late Kamakura period; the suguha may take a shallow notare, the kaeri of the ko-maru boshi often runs down long, and the hamachi is frequently hardened in. Carving is habitual, a katana-hi with a slender koshi-bi or suken set beside it, or bonji over gomabashi, the added side groove being a practice "peculiar to Rai work" (来物に特有). Suguha rules him, yet a small choji group stands at the opposite limit. Its representative is a National Treasure tachi, and a kodachi raised at the 27th Tokubetsu Juyo session, slender, high in koshi-zori, mixing large-lobed choji with the nie thick in the ha, is called "the most flamboyant range of work in his oeuvre" (同工作例中で最も華やかな作域), "just evoking Niji Kunitoshi" (宛ら二字国俊を彷彿とさせる). That evocation is the heart of the school's classic question, whether the two-character Kunitoshi and the three-character Rai Kunitoshi are one smith or two. The combined dated works run from Koan 1 (1278) to Genko 1 (1321), some forty years and no strain for a single career, and counted back from the age inscription of seventy-five, the lone dated Niji blade falls at age thirty-eight. In recent years, the sources write, re-examination of the workmanship and the signature forms has brought the same-smith view toward acceptance, prompting a rethink of the two-smith position, and the choji blades above are read as key material on his side of the divide. The signatures hold further scholarship: the Gen'o pieces turn cursive enough that the notes weigh his old age against a second generation; rare works add the Minamoto surname; and on a Genko 2 folded-signature katana once worn by Shimazu Narinobu, the character kuni is cut in the manner of his pupil Rai Kunitsugu, read as one of the rare cases of the pupil signing in the master's name, the third such example known.
The contrast with Niji Kunitoshi is the standing formula of his appraisals: against a grand body with ikubi point and a flamboyant choji-dominated midare, the three-character works set a slender or standard build, a suguha or suguha with small-patterned midare, and a gentle effect overall, so the two hands can be told apart even while the one-smith question stays open. His other neighbors lie within the school. At its quietest his hoso-suguha "can at first glance be mistaken for Ryokai" (一見了戒に紛れる), and his calmest, largest tanto are read first toward Rai Kunimitsu before the dignity of the work, "a grade higher" (格調が一段高く), settles the attribution on Kunitoshi. His pupils Rai Kunimitsu and Rai Kunitsugu carried the school through the end of Kamakura, and the line between master and pupils is fine enough that the meibutsu Yuki Rai Kunitoshi, a tanto recorded in the Meibutsucho, is itself said at first sight to suggest Kunimitsu and Kunitsugu.
For a master of this rank he is unusually approachable. Fujishiro grades him Sai-jo saku; five of his blades are National Treasures and eleven are Important Cultural Properties, with twenty-one Tokubetsu Juyo and one hundred forty-three Juyo beneath them, one hundred sixty-four blades across those two tiers. Signed work is abundant, one hundred thirty-four signed against ninety-one unsigned here, which is why his chronology can be written at all. Ten blades are locked in the National Treasure and Important Cultural Property tiers and will never trade, among them the kodachi of Futarasan Shrine at Nikko; the Tokugawa Art Museum holds the age-75 tachi, and other works rest with the Tokyo National Museum, the Nezu Museum, the Sano Art Museum and the Kurokawa Institute. Sixty-one blades carry recorded provenance: Toyotomi Hideyoshi, the shoguns Tokugawa Hidetada and Iemitsu, the Owari and Kishu Tokugawa, the Maeda, the Uesugi, the Shimazu of Kagoshima and the Sanada of Matsushiro. Yet thirty-six works are recorded in private hands and many more sit in the tradeable Juyo tiers, so a suguha tanto or tachi by Rai Kunitoshi, late Kamakura Yamashiro work in its purest form, remains a goal a serious collector can actually reach; the choji blades and the dated pieces stand effectively beyond the market.
Kuniyuki (國行) — Mainline · 1259-1260. Kokuhō, Jūbun, Jūbi, Tokujū, Jūyō. Rai Kuniyuki was, in the words the published sources return to again and again, the de facto founder of the Rai school of Yamashiro, working in the mid Kamakura period. None of his own blades carries a production date, but the two-character Kunitoshi, transmitted as his son, left a tachi dated Koan 1 (1278), and on that footing the published sources affirm the usual reckoning that places Kuniyuki around the Shogen and Bun'o years. He stands at the head of the line the late-Kamakura Yamashiro tradition would be built upon, and his signed tachi survive in comparatively large numbers while a single reliable tanto is all that is known, exactly as for that same Kunitoshi.
The shape of his tachi is not one thing. The published sources describe a range that runs from slender, orthodox builds to broad, powerfully made blades, with the point typically tied off in an ikubi manner. The signed, ubu pieces keep a high, wheel-like curvature and a small point of real grace; the great mass of the surviving work is o-suriage and unsigned, wide in the body with a thick kasane, and even after shortening it holds a deep wazori and a weighty, dignified bearing that reads at once as mid Kamakura.
The jigane is the constant. It is a finely forged ko-itame, at times carrying itame, mokume and a little nagare-hada, worked until it is dense and refined; over it the ji-nie lies thickly in minute particles, fine chikei enter, and a nie-utsuri rises that in places shades toward a midare-utsuri. The steel is strong and clear, and the bright, refined forging that the connoisseur reads as Rai-hada is the first thing the eye should settle on. This is the calm, lustrous jigane on which everything else is staged.
Over that jigane Kuniyuki tempers a wide, suguha-toned ha rather than the full choji of contemporary Bizen. Into it he mixes ko-choji, ko-gunome, small midare and squared-off elements, so that the temper is complex and changeful without ever becoming a clamorous midare; ashi and yo enter densely, often as the Kyoto-style saka-ashi, the nioiguchi runs deep and bright, ko-nie attaches thickly, and kinsuji and sunagashi move through the body of the ha. At the crests of the undulations small tobiyaki and yubashiri sometimes gather into a kiji-mata or gan-mata figure, and muneyaki may appear above. It is a temper of restraint and activity at once, the activity carried in the nie rather than in the height of the pattern.
The boshi is where his hand is most easily misjudged. It is not a plain ko-maru. A ko-maru is indeed the most frequent turnback, but it is most often drawn out by hakikake, the brushed nie of the point continuing the work of the ji below; the published sources describe a boshi that vigorously brushes (盛んに掃きかける) and that turns back in a small round with a slightly pointed tendency (先小丸やや尖りごころに返る). In many blades it falls into a midare-komi with a pointing tip (帽子は小さく乱れ込み、先尖りごころ), at times genuinely pointed, at times burned through in a yakizume manner. A reading that names only the small round and the irregular turnback misses the swept tip that is in fact the dominant feature, and for recognition the hakikake belongs in the first rank of his boshi traits beside the ko-maru itself.
For a founder of his rank the named histories are heavy. A signed Tokubetsu-Juyo tachi descended in the Kuroda family of Chikuzen and carries an origami of Genroku 14 (1701) by Hon'ami Kochu (本阿弥光忠) valuing it at one thousand kan, with Goto fittings on its tachi mounting; another o-suriage blade passed through the Shimazu family of Satsuma; signature variants are read against a piece formerly in the Ogasawara collection, and his blades reach into the Tokugawa houses as well. His work numbers a National Treasure and many Important Cultural Properties, and within the published catalogues his Tokubetsu-Juyo and Juyo entries together run to roughly a hundred, a count that places him among the very highest of the koto Yamashiro masters and makes a freely tradeable example a genuine rarity.
Kunitoshi (國俊) — Mainline · 1278-1288. Jūbun, Jūbi, Tokujū, Jūyō. A single dated work anchors the two-character Kunitoshi in time: a tachi inscribed in Koan 1 (1278), designated an Important Cultural Property and preserved in the Tokyo National Museum. Its maker, Kunitoshi of Yamashiro, cut his name in two characters only, without the character Rai, and the published sources accordingly call him Niji Kunitoshi, the two-character Kunitoshi, to part him from the smith who signed Rai Kunitoshi in three. He is traditionally recorded as the son of Rai Kuniyuki, and of the Rai mainline he stands closest to his father, down to details of forging and carving that the designation records trace from one hand to the other. He worked at the school's grand mid-Kamakura moment, and whether he and the three-character Rai Kunitoshi are one man or two remains the classic question of the Rai school, carried in nearly every published entry as an open verdict.
The hand the published sources describe as typical is the most flamboyant in the Rai mainline. His blades run wide in mihaba with little taper from base to point, the kasane thick, the curve a deep wa-zori, the point a compact, stout ikubi-kissaki. Over this powerful build he burns a choji-dominant midare in ko-nie-deki, so showy that the records repeat the verdict of the old books that it "resembles the Bizen Ichimonji" (備前一文字などに似たり). Ashi and yo crowd into the ha, sunagashi and kinsuji stream through it, and yubashiri plays at the heads of the yaki. Patches of muneyaki lie along the back, a feature one entry names a habit of the Rai hand (来物の手癖). The Kyoto marks are stated just as plainly: the nie within the ha is markedly strong, the stated point of difference from Bizen; the utsuri that rises is, as a rule, a nie-utsuri; and the ashi, chiefly on the wearing side, slant back toward the nakago, opposite to the Bizen direction, the so-called kyo-sakaashi (京逆足).
The jigane is in his father Kuniyuki's manner, an itame of comparatively large texture with a tendency to stand, under ji-nie laid thick and fine chikei, the steel bright. Beside the usual nie-utsuri a midare-utsuri rises on occasion; one Tokubetsu Juyo entry notes a midare-utsuri accompanied by a dark band as a rarity otherwise confirmed on signed works of Rai Kunitoshi and Ryokai, so that even his exceptions stay inside the school. On the flamboyant works the boshi runs in midare-komi, sweeps in hakikake, and often finishes near yakizume with considerable force, while the calmer works settle into a quiet ko-maru. Most blades carry bo-hi, and on more than one the groove at the koshimoto holds a suken in relief, a carving the published sources point out exists in the same form (同調の彫物) on work of Kuniyuki.
Signed works are comparatively few, and nearly all of them are tachi. The published record long repeated that his tanto came to "merely one piece" (僅かに一口), the meibutsu Aizen Kunitoshi, an Important Cultural Property, until a second signed tanto was recognized at the 61st Juyo session and later raised to Tokubetsu Juyo, its signature judged on the close likeness of the character for Kuni to the dated Koan 1 tachi. It is on the signed blades that a second, quieter register concentrates: a chu- or hiro-suguha with ko-choji and ko-gunome over a tight ko-itame with dust-fine ji-nie, the boshi a calm ko-maru. The sources read a shu-mei tachi from the Kishu Tokugawa house as showing "a workmanship close to Kuniyuki" (国行に近接した出来口), judge the ubu tachi of the Owari Tokugawa "hardly different from Rai Kunitoshi" (来国俊と殆ど大差のない), and call a signed tachi in true suguha "precious material" (貴重な資料) should the one-smith theory be argued. The scholarship turns on exactly this. The dated examples of the two signatures span Koan 1 to Genko 1, about forty years, no impossible working life for a single smith; counted back from the Rai Kunitoshi tachi dated Showa 4 (1315) with an age of seventy-five, the same man would have been thirty-eight in Koan 1. Against this the Kaifunki draws the line another way: "the two-character Kunitoshi was Kuniyuki's heir and died young; Rai Kunitoshi was the second son, and from him the cutting of the character Rai began" (二字国俊是は国行が嫡子也。若時死たり。来国俊国行が二男也。是より来の字を打初むる). The most recent designation entries record that re-examination of workmanship and signatures has lately revived the one-smith view, prompting, in their words, a reconsideration of the two-smith position.
Against the Ichimonji, the smiths his work most resembles, he is told by his own marks: the strength of the nie within the ha, the utsuri rising as a nie-utsuri, and the kyo-sakaashi slanting toward the nakago. One Juyo entry states the position from inside the school, placing him in a working range that, within the Rai school, can pass among the showy productions of the Ichimonji and Osafune. His place in the lineage is double. Upstream he is the nearest of the Rai smiths to Kuniyuki, sharing the standing itame, the muneyaki and the carving in the groove; downstream his calm signed suguha flows directly into the refined manner of the three-character Rai Kunitoshi. Brother, father or the same man's earlier self, he is the bridge over which the school's grand mid-Kamakura style passes into its late-Kamakura refinement.
Fujishiro grades him Sai-jo saku, the highest rank. Eighty-four designated works stand on record: twenty-one Tokubetsu Juyo and forty-eight Juyo, sixty-nine blades in those two tiers together, with nine Juyo Bijutsuhin and four Important Cultural Properties above them, among the last the Aizen Kunitoshi and the dated Koan 1 tachi of the Tokyo National Museum. The meibutsu Torikai Kunitoshi, a kodachi of one shaku nine sun nine bu listed in the Meibutsucho, passed to the Owari Tokugawa after the death of Tokugawa Ieyasu and is held by the Tokugawa Reimeikai Foundation. The provenance roll is substantial: nineteen blades carry recorded histories through the Owari and Kishu Tokugawa, the Maeda, Hosokawa, Uesugi, Date, Asano, Yamauchi, Hachisuka and Matsudaira houses and the Imperial Family, one Owari blade entering the registers as a Suruga Tokugawa distribution piece ranked in the house's highest group (仁壹ノ廿), with Hon'ami origami of Genroku and Hoei attached to others. His Important Cultural Properties are patrimony, preserved in the Tokyo National Museum and in long-held collections, and of the remainder the recorded whereabouts run heavily to institutions and old families. For the private collector the realistic field is the Tokubetsu Juyo and Juyo tier, some sixty blades that can in principle change hands; in practice they are held far more often than they are traded, and a two-character Kunitoshi coming to market is a rare event, standing at the very top of the field when it does.
Kunitsugu (國次) — Mainline · 1311-1327. Kokuhō, Jūbun, Jūbi, Tokujū, Jūyō. On the *tanto* recorded in the Meibutsu-cho as the Torikai Kunitsugu (鳥養国次), the NBTHK writes that the work of Rai Kunitsugu shows "the strongest *nie* of *ji* and *ha* within the whole Rai school" (来一派の中では地刃の沸が一番強い), and that single judgment carries the essence of the smith. The published sources place him at the very end of the Kamakura period, his activity reaching into the first years of Nanbokucho, where he stands beside Rai Kunimitsu, his slight senior, as one of the two masters who bring the Rai mainline to its close. His genealogy is unsettled across the published record: the usual account makes him a pupil of Rai Kunitoshi, one account a cousin of Rai Kunimitsu, others the son of Kunitoshi or Kunimitsu's younger brother. From of old he has been counted among the Ten Brilliant Pupils of Masamune (正宗十哲) and carries the name "Kamakura-Rai" (鎌倉来), a name the published sources explain by the manner of the work itself.
That manner is a *hamon* the earlier Rai never showed: a *midare*-dominant temper of *notare* mixed with *gunome*, the *nie* thick and bright, *kinsuji* and *sunagashi* sweeping through the *ha*, *yubashiri* drifting along the *habuchi*. The *kitae* sets thick *ji-nie* over *itame* and weaves in frequent *chikei*, in places standing slightly. The recurring verdict of the published sources is that this is a workmanship "strongly shaped by the influence of Soshu-den" (相州伝の影響を多分に受けた出来口), and the comment of Honma recorded against another of his Juyo Bijutsuhin *tanto* holds the same line, that within the Rai school the *nie* of his *ji* and *ha* is conspicuously strong. Even an absence points the same way: compared with general Rai work, his *ji* shows fewer of the soft *rai-hada* patches typical of the school. The *boshi* of this register runs *midare-komi* or with a pointed tendency, often swept with *hakikake*.
Beneath the Soshu color the *jigane* stays Rai. The forging in his finest pieces is a packed ko-itame, the *ji-nie* fine and thick, *chikei* entering finely, and a pale *nie-utsuri* rising over the *ji*, the anchors that keep the work Kyoto. His most numerous surviving class is the wide *osuriage mumei* *katana*, often in a deep *wa-zori* with the *chu-kissaki* extended. On these blades a *suguha*-toned base mixes ko-gunome and ko-choji; *ashi* and *yo* enter long, thick and without pause; the *nie* sits deep into the *ha*, *kinsuji* and *sunagashi* run, and *nijuba*-like *yubashiri* plays at the edge. The deciding point is stated outright in the published sources: where the *ji* and *ha* are unusually bright and the *nie* strong, "if one fixes on the point that the *nie-ashi* stand out within the *ha*, an attribution to Rai Kunitsugu is judged proper" (刃中の沸足が目立っている点に着眼すれば来国次と鑑するのが妥当). One Juyo *katana* is described as reading "just as though the *midare* he tempers on his *tanto* had been rendered on a long blade" (宛ら同工の短刀に焼く乱れを太刀にあらわした感).
His signed work is nearly all *tanto* and ko-wakizashi; the published sources repeat that surviving *tachi* are scarce, and that *ken* and *yari* survive only in the rarest examples. The *tanto* are signed below the *mekugi-ana* at the center of the *nakago* with a large, thick-chiseled three-character *mei*, while the slender signed *tachi* with high *koshizori* carry an elongated, finely chiseled, smaller signature that the NBTHK reads as his early hand, valued for showing the change of his manner over time. A minority of works keeps the older Rai style unaltered, a quiet *suguha* with ko-choji, the *nie* at ordinary strength; the *tanto* handed down in the Uesugi house is called "a calm register that holds faithfully to the Rai tradition" (来派の伝統を墨守した穏やかな作域), and such work is noted as extremely rare for him. Dated pieces are nearly absent: the *ken* of Karyaku 2 (1327) is his earliest surviving date, worked, as with other smiths of the period, in Yamato-den; a *tanto* of Shokei 1 (1332) also survives, and Gentoku dates are known only from the old sword albums. On the tradition that he studied under Masamune the NBTHK itself is careful: since Kunimitsu too at times shows the same *nie*-strong manner, it writes, to affirm the pupil legend from the style alone would be "premature" (早計).
The comparison that fixes his place is drawn against Rai Kunimitsu. Kunimitsu also left *midare* work beside his traditional *suguha*, but in his case, the published sources observe, the *suguha* far outnumber the *midare*, and "Kunitsugu is the opposite" (来国次はそれとは反対). One Juyo text goes further, judging that he carries the *nie* even beyond the *nie*-emphasized *midareba* of his senior, a manner the earlier Rai never had. Among the forebears of the line, Kuniyuki, Niji Kunitoshi, Rai Kunitoshi and Kunimitsu, he is the one who retains the least of the traditional Kyoto style, which is exactly why the old Masamune-pupil account drew attention. The judges also leave him room: various atypical pieces (変り出来) are acknowledged within his work, and his few signed *tachi* differ among themselves. With Kunimitsu he carries the Rai mainline to its close in early Nanbokucho, and the Kamakura-Rai name marks his position as the school's Soshu-facing edge.
Fujishiro grades him Jo-jo saku. One of his blades is a National Treasure and four are Important Cultural Properties, patrimony preserved wholly outside the market; beneath them stand fourteen Tokubetsu Juyo and forty Juyo, fifty-four blades in those two tiers, out of sixty-five designated works on record, twenty-nine of them signed against thirty-six unsigned. The Torikai Kunitsugu itself was certified Juyo Bijutsuhin in 1933. The provenance roll is of the first rank: the published sources single out the famous *tachi* handed down in the former shogunal house and in the Maeda house; another *tachi*, recorded in the Tokugawa Jikki, was presented by the shogun Tokugawa Tsunayoshi to Yanagisawa Yoshiyasu in Genroku 15 (1702); a *katana* passed from Matsudaira Nobuyasu, Ieyasu's eldest son, to his retainer Hiraiwa Chikayoshi; and *tanto* descended in the Uesugi, Asano, Okubo, Nabeshima and Ikoma houses and in the Yamauchi of Tosa, whose blade went to the shogunal house as a memorial gift in Kyoho 5 (1720). Of recorded whereabouts today, examples rest in the Tokyo National Museum, the Sano Art Museum and the Hikone Castle Museum. For the collector the picture is that of a major Rai master whose designated works are held far more often than they move: a *mumei* *katana* or *wakizashi* of the Juyo tier appears from time to time, a signed *tanto* only rarely, and a piece of the order of the Torikai Kunitsugu can only be awaited as an event.
Ryokai (了戒) — Mainline · 1288-1305. Jūbun, Jūbi, Tokujū, Jūyō. Ryōkai of Yamashiro Province founded the Ryōkai school, one of the Rai offshoots of the late Kamakura capital, and worked in the same years as Rai Kunitoshi: his surviving dated blades carry the era names Shōō, Einin, Kagen and Engen. The old account makes him a son or a pupil of Rai Kunitoshi, but the published sources note that the dated pieces place him almost level with Kunitoshi, so that he reads more naturally as a fellow disciple (aitedeshi); and if the 'two-character Kunitoshi' and Rai Kunitoshi are taken as different men, Ryōkai would instead be the son of the two-character Kunitoshi. Either way his is the Rai Yamashiro hand softened a degree, and the published record fixes the difference precisely, noting that with him 'the ji and ha can feel somewhat less forceful' (地刃がやや弱く感じられる) than Kunitoshi's. He is Jō-saku in Fujishiro's grading, the head from whom the Ryōkai line descends.
The hand the published descriptions assign him is a quiet one. Over a packed itame or ko-itame, often flowing toward masame and standing a little open, fine ji-nie adheres thickly and fine chikei enter, and a whitish shirake-utsuri stands in the ji. The temper is a calm chū- or hoso-suguha, mixing here a small ko-chōji, ko-gunome or ko-midare, with ko-ashi and yō entering, sometimes a Kyoto-style reverse ashi along the edge. Its distinguishing mark is the nioiguchi: it tightens and grows austere, and in places clouds into urumi, that moist, soft quality the published sources name again and again as a Ryōkai point. The judges set the contrast with the parent Rai exactly, writing that compared with Kunitoshi 'the nioiguchi is one degree tighter and the activity within the temper lonelier, breaking in places into urumi' (来国俊より一段と匂口が締まって刃中が淋しく、部分的にうるみごころを呈し). The boshi closes sugu into a ko-maru, often brushed with a little hakikake.
The ji is where the school turns from Rai toward Yamato. The forging carries masame mixed into the itame, the published record observing that the jihada 'shows more masame tendency than in Rai Kunitoshi' and takes on a whitish cast, and the shirake-utsuri that rises with it is the first thing that separates a Ryōkai blade from its parent: where Rai keeps a clear, bright midare- or jifu-utsuri, Ryōkai stands a paler, drier shirake. On the finest tachi the steel shows ko-itame in a piled manner with chikei and a faint jifu-utsuri, the Kyoto refinement still legible beneath the school's drift; on the plainer katana the grain flows openly toward masame and the utsuri whitens further. Fine kinsuji and sunagashi run within a tight, bright nioiguchi, faint hotsure and kuichigai-ba fray the habuchi, and the boshi keeps to its ko-maru.
His work survives in two registers of the one manner. The signed pieces are slender ubu tachi and tantō, the mei a boldly cut two-character Ryō-kai set toward the mune above the first mekugi-ana; the tachi keep a high koshizori toward a small kissaki, the tantō run in uchizori with a thick kasane, the typical late-Kamakura Kyoto tantō, several carved with bonji and suken on the omote and gomabashi on the ura. Of one such tantō the published sources write that, complete in every part, it is 'altogether elegant' (いかにも典雅である), a work that 'may well be called a representative work of Ryōkai' (了戒の代表作と称してよく), adding that 'the signature too is of the archetypal type' (銘字も典型的である). The second register, and the bulk of the designated record, is ōsuriage mumei katana given to him on the hand: the wa-zori and Kyoto air recall Rai at first glance, but the tightening, sinking, clouding nioiguchi, the flowing masame and the shirake settle the attribution to Ryōkai. A small number of collaborative dated blades signed with his son Hisanobu also survive, the work close to the father's suguha, signed examples of the son being very rare.
The distinction the judges draw most often is the one against Rai itself, for the school stands so close to its parent that the two are confused at sight. The published record states it plainly: Ryōkai 'is often mistaken for Rai Kunitoshi' (まま来国俊に紛れるが), the attribution then settled not by any single feature but by the softer ji and ha, the masame in the jihada, the whitish utsuri and the clouding line, since 'the nioiguchi has an urumi quality, and the ji carries more masame than Rai Kunitoshi' (匂口にうるみごころがあり、地に来国俊よりも柾気がある). His own grounded tells separate him from the sister Enju school as cleanly: where Enju turns the boshi in a large, deep o-maru, Ryōkai closes sugu into a small ko-maru, and his suguha clouds into the urumi that Enju leaves bright. Downstream the Ryōkai name ran for several generations, his son Ryō Hisanobu next, and by the Nanbokuchō and Muromachi eras a Kyushu branch had formed, the Chikushi Ryōkai of Bungo and Buzen descended from the Kyoto line.
Ryōkai is a smith of real standing whose designated work can still be encountered, though sparingly. Of his blades on the official record, two are Important Cultural Properties, among them the famed Akita Ryōkai tantō; four are Tokubetsu Jūyō and eighty-three Jūyō, eighty-seven across the Tokujū and Jūyō tiers. The Important Cultural Properties are patrimony, held and studied rather than traded, and most of the designated blades, signed or attributed, are kept in long-held public and private collections, among them the Tokyo National Museum, the Sano Art Museum and Monobe Jinja, with prewar Jūyō-Bijutsuhin pieces recorded against the Maeda and other houses. One tachi preserves a tradition that it was 'a sword worn by Miyamoto Musashi' (宮本武蔵佩刀との伝え), and his blades pass through the Isahaya, Date and Maeda families. Of the works whose whereabouts are recorded, only the Tokubetsu Jūyō and Jūyō tier reaches the market, and then rarely; a signed ubu Ryōkai tachi or tantō in particular is among the scarcer things a collector of Kyoto Kamakura work will meet, coming to hand only with patience.
Mitsukane (光包) — Mainline · 1303-1306. Jūbun, Tokujū, Jūyō. Mitsukane of Yamashiro, active at the end of the Kamakura period, is recorded as a pupil of Rai Kunitoshi and, in the NBTHK's recurring phrase, "a smith apart within the Rai school" (来派中異色の刀工). Tradition gives him a Bizen chapter as well: he is said to have gone to Osafune and studied under Nagamitsu, and on the order of events the published sources are precise, observing that "most transmitted records state that he first studied under Nagamitsu and afterwards entered the school of Rai Kunitoshi" (はじめ長光に学び、のち来国俊の門に入ると記す伝書が多い). He lived and worked at Tozu in Omi, whence the name Tozu Rai (戸津来), and by the legend the texts repeat in nearly every designation he withdrew to forge at the Konpon Chudo, the central hall of Enryaku-ji on Mt. Hiei, whence the name by which he is best known, Chudo Rai (中堂来). He signed with the two characters Mitsukane alone, never crowning the signature with the character Rai. About scarcity the record is emphatic: "examples encountered are extremely few; there are no tachi, only tanto" (経眼する遺例は極めて少なく), and the signed work is confined to tanto.
The build announces him before the steel does. His tanto are hira-zukuri with mitsu-mune, somewhat elongated and often a little wide in the mihaba, with *uchizori*, and the published sources fix the construction in a standing formula, naming "the thick kasane and sturdy construction" (重ねの厚い丈夫な造込み) together with a *boshi* "whose roundness is large and whose kaeri returns wide, deep and long" (帽子の丸みが大きく且つ返りの焼幅が広く長く返る) among the features to see. The oldest commentary in the corpus already treats both points as his habit, writing that "there is rather more variation within the ha than in his teacher Rai Kunitoshi, and the kaeri of the boshi is as a rule long" (師の来国俊よりもむしろ刃中の変化があり). The hamon itself is a *suguha* in the manner of his teacher, though one designation adds that he "burns a suguha wider than Kunitoshi's" (来国俊より広い直刃を焼き). Into the quiet line mix *ko-midare*, a feeling of *ko-choji* or *ko-gunome*, and *kuichigai-ba*; *ashi* and *yo* enter, the *nioi* runs deep, *ko-nie* lies thickly, and *kinsuji* and fine *sunagashi* work through a *nioiguchi* that stays bright and clear.
The *jigane* is the declared tell, and the NBTHK states it almost verbatim across the later texts: the jigane of this smith "has as its special quality that the ji-nie is laid on exceptionally thickly so that it looks strong, and the loose, weak texture called Rai-hada is in general rare in him" (地沸を一際厚く敷いて強く見えるのが持味). The kitae is a finely packed *ko-itame*, mixing flowing hada toward the ura or along the edge and a touch of larger hada at the koshimoto; the *ji-nie* sits dust-fine and thick, a *nie-utsuri* rises, and the steel is bright. One designation widens the contrast to the whole school, finding that "the jigane is stronger and clearer than that of Rai Kunitoshi or Rai Kunimitsu" (地がねが来国俊や来国光よりも強く冴えている) and naming that strength a point to see. The old kantei literature reached the same judgment in its own words: the NBTHK quotes the Edo text Nyote-hikisho (如手引抄) to the effect that, compared with Kunitoshi, the color of his ji is bluer and clear to the bottom, the nie fine and vivid, "like the nie of Awataguchi Yoshimitsu" (粟田口吉光景気の沸のごとし). Horimono appear on a few pieces, *gomabashi* paired with a stout *koshi-hi*, or a *suken* on the omote with *bonji* on the ura.
Against this suguha mainstream the texts set exactly one exception, rehearsed in nearly every designation: "there exists one single work that burns a midare-ba led by gunome, of a kind that underwrites the theory that he was Nagamitsu's pupil" (唯一口、長光門人説を裏付けるような互の目主調の乱れ刃を焼いた作), the meibutsu Midare-Mitsukane (名物乱光包), an Important Cultural Property whose deki at first sight recalls Bizen. The oldest text in the corpus names the Bizen teacher as Kagemitsu rather than Nagamitsu, judging works of this group "almost the image of Kagemitsu, though stronger than Kagemitsu in the nie of ji and ha"; the later texts settle on Nagamitsu. The surviving record divides as well by signature. The signed pieces are slender *nijimei* tanto in a fine suguha, while the broad wide-suguha examples are the larger unsigned works, among them a *sunnobi* wakizashi carrying not a signature but a *shu-mei*, the Hon'ami house's red-lacquer attribution reading Mitsukane with Hon'a and a *kao*, whose deki the NBTHK judges "an accomplishment surpassing even the signed Mitsukane" (在銘の光包を凌ぐほどの出来映え); the document of its old scabbard records that the fifth shogun Tsunayoshi presented it in Enpo 8 (1680) to mark his son Tokumatsu's move to the Nishinomaru of Edo castle.
In kantei he stands as the strong pole of the Rai school. Where the school's quiet suguha can ride on a soft, loose jigane, his carries nie laid on thickly over a tight ko-itame; where his teacher's tanto are slender, his run thicker in the kasane and a little longer in the body; the suguha is wider, the movement within it greater, and the boshi rounder, its kaeri deeper and longer. The literature reaches past his own school for the comparison, likening the fineness and vividness of his nie upward to Awataguchi Yoshimitsu rather than across to his Rai fellows. The texts name no pupils and no continuing line, and his manner closes with him; what remains is a small, coherent body of tanto in which, as the published sources put it of the best examples, the typical manner of Chudo Rai Mitsukane is displayed to the letter.
Fifteen designated works stand on the official record: four Important Cultural Properties, among them the Midare-Mitsukane and a signed tanto transmitted in the Date family, three Tokubetsu Juyo, and eight Juyo, eleven blades in all in the Tokubetsu Juyo and Juyo tiers; five of the fifteen are signed, ten unsigned. The provenance recorded against them runs through the great houses of the Edo period. The meibutsu Kuwayama Mitsukane (名物桑山光包), an ubu mumei tanto listed in the Kyoho Meibutsu-cho, takes its name from Kuwayama Iga-no-kami Motoharu, passed to the third shogun Iemitsu, was granted by him to Maeda Toshitsune, and descended thereafter in the Maeda family; it stands today among his Tokubetsu Juyo. The shu-mei wakizashi descends from the Tokugawa main line. Of recorded whereabouts, his blades rest with the Tokyo National Museum, the Fukuyama Art Museum and the Kurokawa Research Institute, with one in private hands. The four Important Cultural Properties are patrimony, preserved where they are; the eleven blades of the Tokubetsu Juyo and Juyo tiers are what a collector could in principle encounter, and for a smith whose surviving examples the published sources themselves call extremely few, one reaching the market is a rare event.
Kuninaga (國長) — Mainline · 1329-1331. Jūbun, Tokujū, Jūyō. Kuninaga is the smith the published sources call Nakajima Rai, a pupil of Rai Kunitoshi who left Yamashiro and settled at Nakajima in Settsu, carrying the Rai manner forward into the Nanbokucho period. The *Meikan* records two generations of the name, placing the first about the Gentoku era at the close of Kamakura and the second about the Shohei and Oan eras; only the three-character signature Rai Kuninaga (来国長) is known, and not a single dated work survives. From this scarcity grows the central scholarly fact about him: the published commentary holds that he resembles Rai Kunimitsu while falling slightly short of him, and it makes the Nakajima Rai attribution itself a standing question of connoisseurship rather than a settled record. His *jigane*, his quiet temper, and a signature that comes in one form alone are what the judges read him by.
The constant of his work is the *jigane*. Over a well-forged *itame* he mixes *mokume* and a flowing *nagare-hada*, the grain tending to stand a little, *hada-tatsu*, with thick *ji-nie* and frequent bold *chikei*. His is a faint *utsuri* or a quiet *nie-utsuri* standing on this open, standing grain, the steel a step away from the closely packed *jigane* of the Yamashiro Rai mainstream. That standing *itame* is the feature the judges mean when they place him just below Kunimitsu; it is also, by their own account, the basis of the attribution problem. Examining his mumei katana, one of them writes that the Nakajima Rai *kiwame* has from old times been directed to *suguha* works of somewhat lesser technical level than Kunimitsu, and asks whether the convention is sound: 「やや技術が劣る直刃出来の作をそれに当てている事が、果して妥当なりや否やという問題に始まる」 (the matter begins with the question of whether it is right that suguha works of somewhat inferior technique have been assigned to him). For the present, the commentary follows tradition.
Over that *jigane* his temper stays calm. The characteristic line is a *suguha*-toned or medium *suguha* into which *ko-gunome*, *ko-choji* and a shallow *notare* enter, with *ashi* and *yo*, *ko-nie* well adhered, and *kinsuji* and *sunagashi* running through, the *nioiguchi* now tight, now bright. The *boshi* runs straight to a small *ko-maru*, or sweeps with *hakikake* to a slightly pointed turnback. This restrained register, not the flamboyant *choji* of a Bizen hand, is the Rai inheritance he carries; and the published sources note that the first generation in particular was proficient in *suguha*, 「初代は直刃を得意」とした. It is the steel and this quiet edge, taken together, that the judges weigh against Rai Kunimitsu, finding the resemblance plain and the refinement a degree less.
The record divides cleanly along the line of signature and form. The body of it is the *o-suriage*, *mumei* katana attributed to Nakajima Rai, wide in body with a *chu-kissaki* over the standing *itame*, the temper a broad or medium *suguha*, often carved with a plain *bo-hi*. The signed pieces, encountered only from time to time, are the work of the second generation in *hira-zukuri* with *mitsu-mune*, wide and slightly elongated with a thin *kasane*, the three-character signature cut large below the *mekugi-ana*. The published sources draw a distinction within his own work: the first generation was the *suguha* hand, while in the second 「二代にはむしろ直刃の作は少なく」, more irregular *notare* tempering becoming common. The signed *wakizashi* and *tanto* keep a consistent carving habit, a *suken* on the *omote* and *gomabashi* on the *ura*, each with a *tsume* beneath, a devotional program that sets them apart from the grooved mumei blades.
One piece stands outside every part of this account. A Tokubetsu Juyo *wakizashi*, signed by *kinzogan-mei*, breaks the calm: over an *itame* with flowing *nagare*, *ji-nie*, *chikei* and a *nie-utsuri* standing strongly on the *ji*, he sets a *gunome* mixed with *choji* and *ko-notare*, and in the upper half *tobiyaki* with a *yubashiri*-like feeling intermingle until the whole becomes a *hitatsura* that undulates flamboyantly. The published commentary calls it 「来派の作としては異色な出来口」 (an idiom unusual for a Rai work), the activity within the temper abundant and the *nie-utsuri* strongly expressed, an outstanding example among this smith's work and 「資料的にも頗る貴重」 (extremely valuable as documentary material) for the breadth of expression possible within the Rai tradition. What separates Kuninaga from his Yamashiro source is exactly this: his is the Rai manner carried a step away from its origin, the *jigane* standing where Kunimitsu's is packed, the *utsuri* turned to *nie*, and the school's reserve held even where, once, it gives way to *hitatsura*.
For the collector Kuninaga is a scarce Nanbokucho name whose extant work, signed and attributed together, is exceedingly few. He has no National Treasures. His record runs instead through the Important Cultural Properties, a signed first-generation *tachi* in *suguha* preserved at Eirin-ji in Yamashiro and an attributed *tachi* held at Sakurayama Shrine, with two Tokubetsu Juyo blades and a long run of Juyo pieces carrying the rest. The denrai roll is a daimyo one, the Hisamatsu Matsudaira house, former lords of Matsuyama in Iyo, the Owari Tokugawa, and other Matsudaira lines among recorded owners. The published sources call one signed example 「同作中のみならず同名中の白眉」 (the finest not only among surviving works but among all smiths bearing this name). Most of his blades are held rather than traded, and a signed Nakajima Rai comes to light only seldom, so a privately held example is a notable thing for a collector to encounter, and a document of how the Rai line continued once it had left Kyoto.
Echizen (越前) — Mainline · 1312-1317. Jūbun, Tokujū, Jūyō. Shodai Echizen Yasutsugu was born in Shimosaka-gō, Sakata District, Ōmi Province, where he styled himself Shimosaka Ichizaemon. He later moved to Echizen and entered the service of Yūki Hideyasu. In his early phase he signed "Higo Daijō Shimosaka," but between Keichō 10 and 11 (1605–1606) he was summoned to Edo, where he forged swords in the presence of both shoguns Ieyasu and Hidetada. In recognition of this distinction, he was granted the hollyhock crest (*aoi-mon*) and the character *yasu*, after which he adopted the name Yasutsugu. This direct patronage by the Tokugawa house placed him among the most politically elevated smiths of the early *shintō* period.
His forging is characteristically dense *itame-hada* mixed with *mokume*, exhibiting extremely fine *ji-nie* and well-entering *chikei*; overall the steel tends toward a dark tone, producing what is termed *Echizen-gane*. His *hamon* is typically based on a medium *suguha* or shallow *notare*, accompanied by linked *ko-gunome*; *ko-ashi* enter well, *nie* adheres thickly, and fine *kinsuji* and *sunagashi* appear in places. The *nioiguchi* frequently shows a *shizumi* tendency, lending a deep, savoury quality. His *bōshi* commonly rises in a *suguha* tone with a pointed tip in a *Jizō*-like manner, with vigorous *hakikake* and a long turnback. Notably, his finest works display a tightly forged *ko-itame* of excellent quality with a bright *nioiguchi*, departing from the more usual standing grain. His *horimono* are deeply cut and forceful, rendered in characteristic *kinai-bori*, with triad compositions of Fudō Myōō with the two *dōji* attendants appearing as a signature motif.
Shodai Yasutsugu occupies a foundational position in the Echizen tradition and among the official smiths of the Tokugawa shogunate. His works combine the powerful, dignified *sugata* of the Keichō era — wide *mihaba*, thick *kasane*, and elongated proportions — with a subdued depth of *nie* and surface activity that rewards close appreciation. His distinctive steel quality, intentional variation of tempering patterns, and superb sculptural carving together distinguish him as one of the preeminent smiths of early *shintō* swordmaking.
Ryokai (了戒) — Mainline · 1308-1311. Jūbun, Jūyō. Ryokai was a smith of the Rai lineage in Yamashiro Province whose common name (*zokumyo*) was Kurozaemon no Jo, as attested by a tachi dated Kagen 3 (1305) inscribed "Yamashiro no Kuni junin Kurozaemon no Jo ... saku." Tradition holds that the first-generation Ryokai studied under Rai Kunitoshi, and one account further relates that he became Kunitoshi's adopted son. However, since dated works by Ryokai are known bearing era names spanning Shoo (1288-1293), Kagen (1303-1306), Enkyo (1308-1311), and Ocho (1311), the NBTHK considers it more reasonable to regard him as a contemporary of Rai Kunitoshi -- a swordsmith who established a different line and formed an independent lineage -- rather than necessarily Kunitoshi's direct pupil. Several generations bore the Ryokai name; in later times some are thought to have moved to Kyushu, and smiths signing "Ryokai" are found extending into the Muromachi period.
Ryokai's workmanship shares a clear line of continuity with that of Rai Kunitoshi, yet it possesses distinguishing traits the NBTHK identifies as key points of appreciation. The forging shows a *masame-gokoro* -- a tendency toward straight grain -- in which a whitish *shirake* cast stands out conspicuously. The temper is a rather quiet, restrained *suguha* whose *nioiguchi* is tight, with *ko-nie* adhering, and which further displays a tendency toward *urumi*, a moist, soft quality that produces a particularly distinctive character. In some works *ko-choji* is mixed into the *suguha*, with fine *ko-ashi* entering continuously; in others, *sunagashi* and *kinsuji* impart a Yamato-like feeling. The *shinogi* tends to be slightly higher than in other Rai works. Among his tanto, which are relatively numerous, some employ *kanmuri-otoshi-zukuri* construction -- a feature shared with Rai Kunitsugi and considered one of the distinctive characteristics of the Rai school.
The NBTHK has emphasized that Ryokai's characteristic traits are "well manifested in both *ji* and *ha*" in his finest works, and that ubu-nakago tachi by this maker are "exceedingly precious." His blades occupy a distinctive position within the Rai tradition: close enough to Kunitoshi's manner to affirm the lineage, yet sufficiently individual in the whitish cast of the *jihada* and the tight, *urumi*-tinged *nioiguchi* to constitute a recognizable personal idiom. His dated works, spanning more than two decades of the late Kamakura period, furnish indispensable reference material for the chronology of the Rai school, while the tradition attributing him to Kunitoshi's circle is consistently affirmed through the style of both *jihada* and *hamon* as well as the calligraphic form of his inscriptions.
Other smiths
Ieyoshi (家能) — Mainline · 1469-1487. Smith of the Yamashiro Rai School.
Kuninaga (國長) — Mainline · 1345-1350. Rai Kuninaga was a pupil of Rai Kunitoshi who left Kyoto and settled at Nakajima in Settsu Province, and from that move the line he founded took the name by which the published sources still call it, "Nakajima Rai" (中島来). Those sources count two generations under the single name Kuninaga, the first recorded in the Gentoku era at the very end of Kamakura and the second active in Nanbokucho around the Shohei and Oan years; the designated record gathered here is almost wholly that second-generation hand, working in the broad, large-pointed shape of the Enbun and Joji decades. His standing is fixed by a sentence the judges repeat across his blades: among the Rai group his work comes closest to Rai Kunimitsu, and at times to Rai Kunitsugu, yet yields a little to those masters in dignity and refinement. From that judgment follows the practical use of his name, for from old times, as the published sources put it, works that resemble Rai Kunimitsu yet are reckoned slightly inferior have been appraised as Kuninaga.
The hand that sentence describes is genuinely a Rai hand carried south and turned a touch more provincial. Over a packed itame or ko-itame that takes on a nagare, masame-leaning tendency near the edge, the jigane of the Kyoto parent, famous for being tight and bright, here stands up somewhat, the grain lifting into a visible surface that the published sources record again and again as hadatachi. Thick ji-nie gathers across it and fine chikei wind through, and on the broad mumei katana this standing, flowing steel carries a Soshu-leaning weight that is the first thing separating one of his blades from a true Kyoto Rai. The temper laid over it is a broad chu-suguha, but it does not stay the plain, quiet suguha of the orthodox Rai line. It breaks instead into ko-notare and ko-gunome, with ashi and yo running in and ko-nie settling along the habuchi, and through the body of the ha run sunagashi and, on the finest pieces, kinsuji and a faint yubashiri above the line.
That busier edge is the heart of his manner, and the judges single it out in the longest of his designations, where the abundant activity in and along the ha is said to give the whole working surface change and force. The nioiguchi, which the school as a whole tends to carry a shade sunk against the brighter Kyoto Rai, turns on his best mumei katana bright and clear, deep in nioi with the nie well applied. The boshi closes straight to a ko-maru and is frequently brushed with hakikake at the point; on the wide, large-kissaki late katana it runs up tsukiage into a yakizume tendency on the omote and points and turns back on the ura, a tip habit that follows the imposing Nanbokucho silhouette. Horimono are ordinary to the Rai inheritance, bo-hi carved through or run off as kaki-nagashi, sometimes with a companion groove, while the tanto take a plain suken with claws or a bonji with gomabashi beneath.
The corpus divides cleanly into two registers, and the division is itself a tool of attribution. The signed survivals are almost all tanto and small wakizashi, broad in the blade and a little sun-nobi with a thin kasane, carrying a three-character mei cut below the mekugi-ana on the sashi-omote, the chisel by turns fine and boldly thick. Signed tachi are extremely rare, and signed work of the first generation rarer still, so that the published sources note the second generation's signed pieces survive in comparatively greater number. The other register is the mumei o-suriage katana of the Enbun and Joji shape, wide in body with little taper, deep in curvature and ending in a large point, attributed to Kuninaga on the reading of the jigane and then confirmed by appraisal. Several of these carry a Hon'ami gold inscription, a kinpun-mei of Hon'ami Koson or a kinzogan-mei of the sixteenth-generation Hon'ami Mitsuhisa, and one wakizashi is accompanied by a Hon'ami Kochu origami of the Kyoho years; the published sources judge that such transmissions may be accepted, the forging and tempering conforming to the appraisal.
His place in the school is best taken from the way his blades are read against his relatives rather than from any claim of his own invention. A broad mumei katana of his can recall Rai Kunimitsu at first sight, and one of the later pieces is said even to call Rai Kunitsugu to mind, yet the standing nagare jigane, the somewhat sunk nioiguchi lifting only on his best work, and the overall level of the workmanship settle the attribution on Kuninaga. The distance is one of degree and not of kind: he keeps the Rai suguha, the Kyoto air and the bo-hi of the parent whole, and what he adds is the provincial, Soshu-leaning cast and the busier edge. The first generation is recorded keeping the orthodox Rai suguha, while the second made fewer pure suguha and many blades in midare-deki, and it is that more active second hand which the present blades document. The judges, weighing the broad ko-itame, the thick ji-nie and chikei and the well-entering ashi and yo, conclude that such a blade clearly manifests the characteristic traits of the Rai school.
Kuninaga is a Jo-jo saku smith of the Rai descent, and the connoisseurship of his work follows from his being a fine but residually attributed name rather than a celebrated one. Eleven of his blades stand on the designated record, all at the Juyo level and none raised to the higher tiers, so that there is no patrimony of his locked permanently into museum and shrine holdings. None of the designated blades carries a recorded daimyo provenance, and current ownership is largely unrecorded, so the honest account is that he is met not through a famous transmission but through the blades themselves: the broad mumei o-suriage katana with their Hon'ami gold attributions, and the signed tanto and small wakizashi in which his hand can be read directly. A collector encounters him as one of the more findable of the Rai-descended names, since his blades sit in the tradeable designation tiers rather than beyond reach, yet a signed example with its three-character mei intact is the rarer thing, the first generation's almost never seen. What such a blade offers is a precise and legible specimen of the Yamashiro Rai manner carried into Settsu and worked a degree busier, the best of which the judges have called a fine piece standing out even within the Kuninaga attribution.
Kuniyasu (國安) — Mainline · 1329-1331. Smith of the Yamashiro Rai School.
Kuniyasu (國安) — Mainline · 1329-1331. Smith of the Yamashiro Rai School.
Kunizane (國眞) — Mainline · 1334-1370. Rai Kunizane is one of the smaller names of the Rai school of Yamashiro, transmitted in the swordbooks as a son or pupil of Rai Kunitoshi, the younger brother of Rai Kunimitsu and the elder brother of Rai Tomokuni, working in Kyoto from the close of the Kamakura period into the Nanbokuchō. His record is almost entirely a question of two faces, and the published sources state the genealogy itself with caution: the *Meikan* gives him the Shōwa era and lists separately a smith of the same name placed before Kenmu, while the commentary observes that the received descent appears strained in both its workmanship and its chronology, so that a first and a second generation must be assumed from the works themselves. He is, in the end, less a single documented hand than the connoisseurship convention by which a particular kind of refined Rai work has been preserved.
The characteristic Kunizane that a collector meets is the *ō-suriage*, *mumei* katana attributed to him from old times, and it is read first in the *jihada*. Over a well-forged *itame*, at times a tightly packed *ko-itame* mixing in *mokume* and flowing *nagare*, the grain tends to stand a little, thick *ji-nie* adheres in fine grains, *chikei* enter frequently, and on the *ji* a faint *nie-utsuri* or pale *utsuri* often rises. The published sources call this a steel that resembles Rai Kunimitsu yet, in their own words, is “similar to Rai Kunimitsu though falling somewhat short of him” (来国光に似てやや及ばない), the standing grain and the quiet *nie-utsuri* marking the manner that carries the Rai *jigane* a step into the Nanbokuchō rather than holding to the bright, closely-packed Yamashiro *ji* of pure Rai.
Over that *jigane* he sets a *suguha*-toned line, broad or medium, into which *ko-chōji*, *ko-gunome* and a small *midare* enter. *Ashi* and *yō* work abundantly, *ko-nie* adheres well, the *habuchi* breaks into fine *hotsure* and at times a *nijūba* tendency, and *kinsuji* and *sunagashi* run through, the *nioiguchi* by turns tight and clearly bright. The *bōshi* runs straight to a small round, or enters *midare-komi* and sweeps with vigorous *hakikake*, on the more flamboyant pieces becoming pointed and flame-like. The decisive point of the attribution is one of degree, not of kind: the temper is the calm Rai register, but its *midare* appears in a smaller-patterned design than Kunimitsu's, and the published commentary turns that very observation into the rule, judging such a work to be “similar to Rai Kunimitsu though slightly lower in rank” and concluding that “within the group it is most appropriate to appraise it, as tradition has it, as the work of this smith” (一派の中では所伝通りに鑑することが最も妥当).
The other face is the signed work, and it is the rarer and more puzzling. Signed pieces are exceedingly few, chiefly *hira-zukuri* *wakizashi* and *tantō*, wide in *mihaba* and *sun-nobi* for their length, thin in *kasane* with a shallow *sori*, the typical Nanbokuchō shape, the three-character signature cut somewhat large below the *mekugi-ana*. Their forging is *itame* with *mokume*, flowing and slightly standing, with *ji-nie* well adhered, but their temper departs from the mainstream attribution: a *suguha* tone broken by *notare* and *ko-gunome*, the *nie* in places strongly thick, the edge running into *hotsure*, *uchi-noke*, a *kuichigai-ba* effect, *nijūba* and *yubashiri*. Several carry an “all-over” *hitatsura*-like temper that, in the published sources' phrase, shows “a burnt-looking manner approaching the workmanship of the Hasebe group” (皆焼風をおびて長谷部に近似した出来口). From this the commentary on the signed *tachi* and *wakizashi* concludes that “one is compelled to judge them works of the Nanbokuchō period” (南北朝の作と断定せざるを得ない), and it is this gap between the calm mumei attributions and the flamboyant signed pieces that sustains the standing question of a first and a second generation of the name.
What sets the Kunizane attribution apart from its neighbours is exactly what the judges name, and they take care to draw it from his own work rather than from the comparand. He stands within the Rai school beside Rai Kunimitsu and Rai Kunitsugu, carrying the Yamashiro manner forward; his is the refined Rai *suguha* read as a step below Kunimitsu in rank and smaller in the pattern of its *midare*, the faint *nie-utsuri* on a slightly standing *itame* his recurring tell. One signed katana with a Hon'ami gold-inlay breaks instead into a *chōji-midare* mixed with *gunome*, the undulations tightly clustered and *muneyaki* intermingled, which the commentary reads as the Rai tradition of Kunimitsu and Kunitsugu carried with a forceful spirit; the *hitatsura*-leaning pieces, with *tobiyaki* and *yubashiri* gathering toward the *monouchi*, are where it locates his individuality. The attribution is therefore a careful one, made by stylistic level and bearing within the school rather than by a single inimitable trait.
For the collector he is an accessible Rai name with a quietly distinguished provenance. Fujishiro grades him Jō saku. He has no National Treasures and no Important Cultural Properties; his record runs entirely through the Jūyō rank, twenty-five blades in the Jūyō tier, most of them *ō-suriage* mumei katana bearing gold-inlaid Hon'ami attributions, the published sources calling several of these especially superior among works attributed to him and sound in both *ji* and *ha*. Signed examples are the prize and the scarcity, so few that the commentary on one Jūyō *wakizashi* calls it “exceedingly valuable material for understanding the workmanship of this so rarely signed smith” (在銘稀有な同工の作風を知る上でも、大変貴重な資料). His blades carry good *nikuoki* and a documented descent through the daimyō houses, among them the Sakai of Maebashi and Himeji, one katana bestowed on Sakai Tadataka in 1745 as a gift marking the retirement of the eighth shogun Tokugawa Yoshimune and thereafter held by the family, with further pieces transmitted in the Nabeshima and Shimazu houses and examples now in the Ise Jingū Chōkokan, the Tokyo National Museum and the Tokyo Fuji Museum. Because all of his record sits in the tradeable tier, a Kunizane katana is not beyond reach in the way a Kunimitsu of the first rank would be; a signed piece, on the other hand, comes to light only seldom, a notable thing for a collector to encounter and a document of how the Rai school carried itself into the Nanbokuchō.
Noshin (能真) — Mainline · Early Muromachi. Smith of the Yamashiro Rai School.
Munenaga (宗長) — Mainline · 1394-1428. Smith of the Yamashiro Rai School.
Nobukane (信包) — Mainline · 1457-1460. Smith of the Yamashiro Rai School.
Kunisue (國末) — Mainline · 1352-1356. Smith of the Yamashiro Rai School.
Hisanobu (久信) — Mainline · 1304-1308. On a long-signed tachi dated Kagen 2 (1304) the smith cut his full name and personal title, Kuro-zaemon-no-jo Hisanobu, and that single inscription fixes much of what is known of him. Ryo Hisanobu, signing Ryo-Hisanobu, was the son of the founder of the Ryokai school of Yamashiro and the second generation of that line, working at the very end of the Kamakura period on the dated evidence of his surviving blades, the year-signatures Kagen, Tokuji and Engyo placing him almost level with his father at the turn of the fourteenth century. The Ryokai school stood among the recognized offshoots of the great Rai workshop of Kyoto, and the published sources describe Hisanobu as carrying his father's hand on with little change. He is rated Jo-jo saku in the reference texts, a high standing for so little-recorded a smith, and his work survives in a handful of designated blades, signed and attributed, by which his manner can be read.
His is the quiet Yamashiro suguha of the Ryokai line. Over a forging of itame or ko-itame that flows toward masame and stands a little open, the ji carries dust-fine ji-nie and the school's whitish shirake-utsuri, which on the slenderer blades rises in a straight band from the machi before spreading up the jigane. The temper is a calm chu- or hoso-suguha, or a suguha-cho mixing small ko-gunome with a few ko-choji and ko-midare, the nioiguchi tightening and clouding into urumi in places, with ko-ashi and yo entering, a faint fraying of hotsure along the habuchi and fine sunagashi, the boshi closing straight into a small ko-maru. The first Juyo tachi the published sources call an offering that well displays the characteristics of the Ryokai school, the phrase 「了戒一派の特色がよく表示された出来口」 standing as a fair summary of his hand.
The jigane is the foundation of the recognition. Across every one of his blades the whitish shirake-utsuri stands in the ji, the inherited Ryokai tell that separates the line from the Rai parent, in whose work it is essentially absent. The itame leans toward masame, the Yamato-ward drift of this Rai offshoot, so that the surface stands and flows where the packed Rai ji stays smooth, ji-nie clinging dust-fine and an occasional chikei running. In the ha the calm suguha shows minute work, ko-ashi and yo entering thickly on the best pieces, the nioiguchi clouding softly, an occasional tobiyaki or yubashiri drifting across, a little nijuba showing low on one kodachi. On his finest attributed tachi the published sources praise the abundant ashi and yo, the good nioiguchi and the finely worked ji together, judging it a particularly fine example among his attributed work with the words 「同工極め中にあって特に優品といえる」.
The small body of his designated work divides into two registers. The first is his rare signed survivals, ubu tachi and kodachi carrying a three-character Ryo-Hisanobu toward the mune above the mekugi-ana, and the one long-signed dated tachi giving the full personal name; one tachi is carved with bonji and suken on the omote and bonji and gomabashi on the ura, the late-Kamakura Kyoto manner. The published sources call the signed kodachi precious as one of the few in-mei works of this smith, ubu and well preserved, its hand recalling the father, 「作風は父了戒を想わせるような出来口」. The second register is mumei blades attributed to him on the same reading, one an ubu mumei tachi of well-made ko-itame, one an osuriage mumei katana slightly high in the shinogi. Signed work is described again and again as extremely few, which is why his year-signed and dated pieces carry such documentary weight, one of them called of very high reference value as one of the scarce in-mei works of this smith, 「数少ない同工の有銘の作として資料価値は頗る高い」.
The kantei is drawn against two near neighbours. The first is Rai Kunitoshi, the parent of the line, against whom the published sources resolve one of his mumei katana directly: the ko-gunome, hotsure and other changes at the ha-border of his fine suguha read a degree quieter and lonelier than Kunitoshi, the calm narrow line still showing minute activity, the verdict 「来国俊に比してやや蕭然たるもの」, with the boshi running straight into a settled ko-maru, so that the Hisanobu attribution is correctly affirmed. The masame and shirake more marked, the nioiguchi tighter and the whole calmer, these are the points that part him from Rai. The second neighbour is the father himself, from whom Hisanobu is separated less by any feature than by the signature, since signed work of the son is rarer still; a plain Hisanobu suguha is at a glance easily taken for the father's, and a soft Rai Kunitoshi for either of them. His single most consequential blade is the dated tachi that, by giving his personal name, established his zokumyo as Kuro-zaemon and through it showed that an earlier nationally designated tachi, once read as the father's sole work, is in fact a joint work of father Ryokai and son Hisanobu.
Hisanobu has no National Treasures and no Important Cultural Properties of his own, and none of his recorded blades is locked permanently out of private hands; his standing is that of a scarce but genuinely collectable name. Five of his blades are on the official designation record, all at the Juyo tier, and the published sources lean on his year-dated work and on outside documents to fix his place, the Tokuji 3 naginata in the Tokugawa Art Museum carrying the inscription 「了戒子息久信作」 that confirms him as Ryokai's son. No provenance owners are recorded for his designated blades, whose whereabouts of record run to private collections across several prefectures. A signed Hisanobu, ubu and with its mei intact, is among the scarcer things a collector of late-Kamakura Yamashiro work could hope to encounter, coming to light only from time to time and prized as documentary evidence as much as for itself; a mumei tachi or katana attributed to him appears a little more readily, and it is on these, with their shirake-utsuri and clouding suguha read against the quieter Rai line, that his hand is most often met. The published sources close on one such mumei blade as a calm fine suguha that yet shows minute work, 「静閑な細直刃ながらも微細な働きをみせる」, a deep and savoured offering, which is as fair a verdict on the smith as on the blade.
Kunihide (國秀) — Mainline · 1345-1350. Of the works that survive under the name of Rai Kunihide, almost all that carry a genuine signature are spears. The published sources count only two such signed yari and have seen no securely signed tachi, so that the smith is known in the main through greatly shortened, unsigned katana later appraised to him. He stands among the rarest of the Rai hands of Yamashiro, transmitted as the son or disciple of Rai Kunitsugu, said to have taken the appellation Rai Hikotaro (来彦太郎), and placed by the reference works around the Jowa era (貞和) of the Nanbokucho period. The picture is complicated by a second smith of the same name whom the meikan assign to the close of Nanbokucho around the Shitoku era (至徳), and by a Kamakura-period Kunihide of the Awataguchi line; clarifying his manner and dividing the first generation from the second are named in the published record as questions for future study. He is, in short, a documented but lightly attested late-Rai master, recognized more by the company he keeps than by his own surviving signatures.
His characteristic hand departs from the plain Rai suguha. Over the temper line he keeps a suguha base, but breaks it: gunome enter, with choji and, on the broader katana, ko-choji and the occasional togariba (尖り刃), the midare in places tightening into a complex small pattern. Long, thick ashi reach into the ha, yo are mixed in, the nioi runs deep and the nie attaches thick, sometimes coarsening to a rough nie-kobore, with kinsuji and sunagashi throughout and, along the habuchi of the largest blades, uchinoke (打のけ) and small yubashiri (湯走り). The nioiguchi stays bright and clear, and the boshi runs straight into a ko-maru, brushed with hakikake (掃きかけ) and turning back only slightly. It is a hand that holds the Rai brightness and the Rai steel while carrying more disturbance in the edge than the school's quiet straight temper, and that added midare is what most distinguishes his katana from an ordinary Rai blade.
The jigane is the Rai inheritance kept intact. He forges an itame, on the finest blades a ko-itame, that tends to flow and on occasion to stand a little (肌立ち), with mokume mixed in; over it the ji-nie adheres thickly in fine particles and the chikei (地景) enter, fine and frequent. On the signed spears the jigane leans further toward masame and nagare and carries a nie-utsuri (沸映り), a faint reflection standing in the steel. This is the Kyoto jigane of the Rai school carried into the wide, extended Nanbokucho body, and on the unsigned katana it is precisely the combination of that refined, nie-laden itame with the bright, busier ha that the judges read as Rai before narrowing the attribution to Kunihide. The work is sound in both ji and ha, and the published sources call the strongest of these blades a particularly superior example among those appraised to him.
His surviving record divides cleanly into two kinds of object. The first is the signed yari, hira-sankaku (平三角) in section with a conspicuously long kerakubi in the Nanbokucho manner, a broad groove cut on the flat, and a large three-character signature on the tang. On these the masame-leaning jigane carries the nie-utsuri, the suguha breaks into ko-gunome with hotsure along the habuchi, and the nioiguchi is bright; the published sources stress that genuine signed work runs almost entirely to these spears and that, with so few extant, the signature itself is the prize, observing that a Nanbokucho yari is in any case scarce, that 「南北朝期の槍はごく少ない」 and that works by this maker are themselves rare. The second kind is the greatly shortened unsigned katana, wide in the body with a chu-kissaki carried long, sometimes an o-kissaki, the period plain in the shape; these make up the larger part of the designated record. The one signed tachi stands apart from both: it bears a finely chiseled two-character signature, Kunihide, set toward the mune, which as the published sources note carries 「一般の来物のように「来」の字を冠していない」, and on the strength of its wide, extended form it is appraised to the Rai Kunihide rather than to the Awataguchi homonym.
Within the school he is placed just below his master, and the distinction is drawn with unusual precision. A wide unsigned katana of his calls Rai Kunitsugu to mind at first sight, the working range so close that the resemblance is the starting point of the appraisal; but on close examination it is judged that 「一見、来国次を想わせるものがあるが、総体に格調の点で聡かそれに譲るところがあり」, and on that small remove in dignity (格調) the blade settles to Kunihide of the same lineage. His own affirmed traits carry the contrast: the suguha base broken by gunome (互の目) and choji (丁子), the bright nioiguchi, the hakikake boshi and the nie-laden itame are what set his katana apart, not any single missing feature, and the traditional attribution is found convincing on those positive terms. Reading the other way, because his securely signed work is almost all yari and no certain signed tachi survives, a plain Rai straight temper can in turn be mistaken for his, which is why the wide Nanbokucho sugata and the added midare matter so much to the judgment.
For a collector the arithmetic is stark and is best stated plainly. The whole of his designated record on the official rolls amounts to seven blades, all at the level of Juyo, with none yet raised to the Tokubetsu Juyo tier and none on the higher rolls of designated cultural property; he is rare rather than canonical, a connoisseur's name rather than a museum's. None of the seven carries a recorded line of provenance, so there is no daimyo roll to recite, and the genuine signed survivals, the two yari, are documentary anchors more than things likely to circulate. What a patient collector might realistically encounter is one of the shortened unsigned katana appraised to him, and even those come forward only rarely, a Rai attribution of real interest when one does. The published sources, noting that 「在銘の現存するものが少なく」 and that the division of the generations remains unsettled, make the point themselves: this is a Rai master glimpsed at the edge of the record, his hand surer than his biography, and an example bearing his name is among the quieter rewards of attention to the late Yamashiro tradition.
Kunimune (國宗) — Mainline · 1319-1321. Smith of the Yamashiro Rai School.
Kuninaga (國長) — Mainline · 1331-1336. Smith of the Yamashiro Rai School.
Kunitake (國武) — Mainline · 1319-1321. Smith of the Yamashiro Rai School.
Mitsushige (光重) — Mainline · 1331-1360. Smith of the Yamashiro Rai School.
Naga (長) — Mainline · 1362-1368. Smith of the Yamashiro Rai School.
Tomokuni (倫國) — Mainline · 1334-1370. Rai Tomokuni is handed down as the son of Rai Kunitoshi and, on one account, the younger brother of Rai Kunizane, which sets him within the second great generation of the Yamashiro Rai school and makes him a near kinsman of Rai Kunimitsu. He is a minor master of that house, and the chief fact of his record is its scarcity. The published sources report no tachi under his name, only a handful of short tanto and small wakizashi, and even those are few, so that almost the whole of his designated body is mumei carried to him by old appraisal. From what survives the sources read two Tomokuni, an earlier hand in the circle of Kunitoshi and a second working in the Nanbokuchō period to whom most existing blades are assigned, and they ask whether that second smith is the Tomokuni recorded under the Bunna era of the old sword registers, leaving the question open to further study. He is thus less a documented individual than a name read off a small group of late Rai blades, and the interest of those blades lies in how they part from the rest of the school.
That parting is stated plainly. The published sources say his work differs somewhat from Kunitoshi (来国俊とはやや作風を異にして), the mihaba broad, the kitae a ko-itame standing stronger than is usual among the school's makers, and the temper a notare-toned midareba in place of the calm suguha that is the Rai hallmark. Every one of his blades carries that notare base mixed with gunome, here and there small gunome, deep in nioi with the nie well applied, and into the habuchi run ashi and yo, kinsuji and sunagashi, with drifting yubashiri and detached tobiyaki, and muneyaki burning along the back. The nioiguchi is bright. The shape fixes the period at a glance, a wide, thin, sun-nobi hira-zukuri of shallow sori that the texts read at once as Nanbokuchō work, with the one o-suriage piece cut down to a wakizashi. His is a worked, nie-laden ha set on a Rai jigane, and that combination, more than any single feature, is what a Tomokuni blade looks like.
The jigane beneath the temper is what keeps the name. The kitae is an itame, on the finest tanto a ko-itame closely packed, with ji-nie adhering well and on one blade thick, chikei entering and a faint nie-utsuri standing on two of them. The steel neither whitens nor sinks as a northern jigane would; it holds the clear, nie-covered surface of Yamashiro work, and the published sources read the school in it directly. The boshi answers the disturbed ha, running in as a midare-komi or, on the broadest blade, sweeping straight with hakikake and pointing faintly before a long return, while the small ko-maru turns close the quieter pieces. The horimono keep the school habit, with gomabashi and a suken, koshi-bi and soe-hi, twin grooves and a katana-hi cut on these small blades. On each blade the judgment closes in the same terms, that the shape shows the Nanbokuchō period and the ji and ha show the Rai school, so that on one wakizashi the sources find the school's traits present and the Tomokuni attribution sound (来一派の特色があり、来倫国の所伝はよい).
The rarity of his signed work is the spine of the scholarship. Because so little is signed, the published sources build the second-generation reading on style rather than on inscriptions, and the argument turns on the same departures that mark his hand. On one tanto they observe that the wide mihaba, the ko-itame jigane unusually strong for the school, and the notare-toned midare carry a strain that connects to Nobukuni (一脈信国に通じるものがある), and reason from exactly this difference that a distinct second generation may stand behind the name, perhaps the Bunna-era Tomokuni of the registers. The form keeps to the small end of the koto range. The two signed pieces and four mumei among the Juyo blades are short tanto and wakizashi, never the tachi the older Rai masters are known by, and the one signed example wears a shu-mei rather than a chiselled signature. He is, in short, a smith reconstructed by appraisal, the most exactly knowable thing about him being the manner itself.
That manner places him at the school's Nanbokuchō edge, where the Rai line opens toward the Sōshū-influenced styles of the day, and his brother stands at the same edge. On the broadest blade the published sources turn to Rai Kunizane, handed down as Kunitoshi's pupil or as his son and Tomokuni's elder brother, and note that some of Kunizane's signed work takes on a hitatsura cast and comes near to Hasebe (皆焼風をおびて長谷部に近似した出来口のもの). Tomokuni's own departure runs the same direction without going so far, his stronger hada and his notare midare reaching toward Nobukuni while the Rai ji holds him to Kyoto. What sets him apart within his own house is therefore positive and grounded in his blades: a kitae that stands where the school's lies flat, a midare where the school keeps suguha, and a nie-deki activity of kinsuji, sunagashi, tobiyaki and muneyaki richer than the quiet Rai temper. It is by these, not by any borrowed Soshu resemblance, that a wide Nanbokuchō blade is returned to Tomokuni rather than read past him.
Almost the whole of his record is mumei attributed to him by old appraisal, and his connoisseurship standing reflects a sound but modest hand, rated Jo-saku with a Toko Taikan valuation in the middle range. A small group of his blades has reached the Juyo rank, and beyond them a scatter of works survives only in the research record, two of them held by the Tokyo National Museum and the Kurokawa Research Institute while the rest stay in private hands, with no daimyo provenance preserved among them. The published sources single out the best of the Juyo pieces for the soundness of both ji and ha, calling the broadest wakizashi an elegantly finished sword without flaw in ji or ha (地刃共に破綻のない上品にまとまった優刀である). A Tomokuni is not a National Treasure held forever beyond reach, but neither is it a sword that comes readily to market. The surviving body is small, most of it is held rather than traded, and a signed example is rarer still, so that a private blade by this name is among the less common things a collector of the Rai school could expect to encounter, met with patience rather than sought to order. For a student of how the Yamashiro line bent toward the new Nanbokuchō manner without leaving its own ji behind, his few wide, nie-laden blades are the place where that turn can actually be seen.
Arimitsu (有光) — Mainline · 1368-1375. Smith of the Yamashiro Rai School.
Hakusan (白山) — Mainline · 1387-1389. Smith of the Yamashiro Rai School.
Haruyuki (春行) — Mainline · 1394-1428. Smith of the Yamashiro Rai School.
Hidetsugu (秀次) — Mainline · 1334-1338. Smith of the Yamashiro Rai School.
Hisakuni (久國) — Mainline · 1319-1321. Smith of the Yamashiro Rai School.
Ieyoshi (家能) — Mainline · 1394-1428. Smith of the Yamashiro Rai School.
Kunihide (國秀) — Mainline · 1332-1334. Smith of the Yamashiro Rai School.
Kunihisa (國久) — Mainline · 1332-1334. Smith of the Yamashiro Rai School.
Kunitsugu (國次) — Mainline · 1312-1317. Smith of the Yamashiro Rai School.
Mitsusada (光定) — Mainline · 1387-1389. Smith of the Yamashiro Rai School.
Munemitsu (宗光) — Mainline · 1338-1342. Smith of the Yamashiro Rai School.
Muneto (宗遠) — Mainline · 1329-1331. Smith of the Yamashiro Rai School.
Muneyoshi (宗能) — Mainline · 1469-1487. Smith of the Yamashiro Rai School.
Naoyoshi (直能) — Mainline · 1504-1521. Smith of the Yamashiro Rai School.
Naoyoshi (直能) — Mainline · 1429-1441. Smith of the Yamashiro Rai School.
Naoyoshi (直能) — Mainline · 1532-1555. Smith of the Yamashiro Rai School.
Nobumasa (信正) — Mainline · 1345-1350. Smith of the Yamashiro Rai School.
Nobumasa (信正) — Mainline · 1390-1394. Smith of the Yamashiro Rai School.
Nobumasa (信正) — Mainline · 1492-1501. Smith of the Yamashiro Rai School.
Nobuyoshi (宣能) — Mainline · 1444-1449. Smith of the Yamashiro Rai School.
Nobuyuki (信行) — Mainline · 1394-1428. Smith of the Yamashiro Rai School.
Norikane (則兼) — Mainline · 1368-1375. Smith of the Yamashiro Rai School.
Norinaga (則永) — Mainline · 1299-1302. Smith of the Yamashiro Rai School.
Noriyoshi (徳能) — Mainline · 1429-1441. Smith of the Yamashiro Rai School.
Noriyoshi (徳能) — Mainline · 1492-1501. Smith of the Yamashiro Rai School.
Sadayoshi (定能) — Mainline · 1469-1487. Smith of the Yamashiro Rai School.
Sadayuki (定行) — Mainline · 1429-1441. Smith of the Yamashiro Rai School.
Shigeyoshi (重能) — Mainline · 1457-1460. Smith of the Yamashiro Rai School.
Tomotsuna (友綱) — Mainline · 1368-1375. Smith of the Yamashiro Rai School.
Tomotsuna (友綱) — Mainline · 1394-1428. Smith of the Yamashiro Rai School.
Tsuneyoshi (恒能) — Mainline · 1469-1487. Smith of the Yamashiro Rai School.
Yasumitsu (安光) — Mainline · 1441-1444. Smith of the Yamashiro Rai School.
Yoshisada (能定) — Mainline · 1394-1428. Smith of the Yamashiro Rai School.
Yoshisada (能定) — Mainline · 1444-1449. Smith of the Yamashiro Rai School.
Yoshitoshi (能世) — Mainline · 1469-1487. Smith of the Yamashiro Rai School.
Yoshitsugu (吉次) — Mainline · 1469-1487. Smith of the Yamashiro Rai School.
Yoshitsugu (能次) — Mainline · 1429-1441. Smith of the Yamashiro Rai School.
Yoshitsugu (能次) — Mainline · 1469-1487. Smith of the Yamashiro Rai School.
Yoshitsugu (能次) — Mainline · 1492-1501. Smith of the Yamashiro Rai School.
Yoshitsugu (能次) — Mainline · 1521-1528. Smith of the Yamashiro Rai School.
Yoshiyuki (吉行) — Mainline · 1381-1384. Smith of the Yamashiro Rai School.
Yoshizane (能眞) — Mainline · 1338-1342. Smith of the Yamashiro Rai School.
Yoshizane (能眞) — Mainline · 1429-1441. Smith of the Yamashiro Rai School.
Yoshizane (能眞) — Mainline · 1469-1487. Smith of the Yamashiro Rai School.
Yoshizane (能眞) — Mainline · 1521-1528. Smith of the Yamashiro Rai School.
Yukihide (行秀) — Mainline · 1394-1428. Smith of the Yamashiro Rai School.
Yukimune (行宗) — Mainline · 1469-1487. Smith of the Yamashiro Rai School.
Live·Rai lineage
来
The Yamashiro Rai School
The courtly steel of Kamakura Kyōto. From the mid-Kamakura period the Rai school rose to become the most prosperous of the Yamashiro lineages — its aesthetic devised by Rai Kuniyuki and perfected by his son Kunitoshi, the first to sign with the character 来. Its hallmark is a luminous, tightly forged jigane laden with ji-nie and clear nie-utsuri, tempered in a calm, crystalline suguha. In Rai Kunitsugu — "Kamakura Rai", counted among the Ten Great Disciples of Masamune — the school drew the vigorous Sōshū manner into its refined Kyōto idiom.
The The Yamashiro Rai School (来), active 1250–1370 in Yamashiro Province across 74 documented smiths: 10 Kokuhō (National Treasures), 65 Jūbun, 82 Jūbi, 115 Tokubetsu Jūyō, 709 Jūyō.
Phase 1 · The Yamashiro Rai School (来) · 1250 – 1370
Kunimitsu (國光) — Mainline · 1326-1351. Kokuhō, Jūbun, Jūbi, Tokujū, Jūyō. The dated works of Rai Kunimitsu (来国光) run from Karyaku 1 (1326) to Kan'o 2 (1351), carrying the Rai school of Yamashiro from the close of the Kamakura period into the early Nanbokucho period. By the prevailing tradition he is transmitted as a son of Rai Kunitoshi, by some accounts a pupil, and the published sources observe that the smith with the most surviving works in the school is Kunimitsu himself. Their constant judgment reaches further: he is "the most versatile smith of the Rai school, the one with the widest working range" (来派の中で最も作域の広い器用な刀工). The notes enumerate that range: beyond the traditional true suguha of the Kyoto line, there are works on a suguha base mixing ko-gunome and ko-choji, works in suguha with a slight ko-midare tendency, works in a notare tone mixed with gunome, and works whose midare is dominated by gunome, spread across tachi, tanto and ko-wakizashi of equally varied form.
His most numerous work is the wide, robust osuriage katana, unsigned yet keeping the deep, evenly arched curvature the published record calls wazori, the chu-kissaki often a little extended. On these blades the temper is a chu-suguha or hiro-suguha within which ko-gunome and ko-choji stand apart; ashi and yo enter thickly, and the nioiguchi runs deep, bright and clear. Ko-nie adheres richly, kinsuji and fine sunagashi pass through the ha, and the boshi is sugu with a komaru turnback. The conspicuous presence of gunome within the suguha is the recognition point the sources state outright, the feature that separates his hand from Kunitoshi and Kuniyuki; of one such katana the NBTHK writes that these features "clearly manifest the characteristic traits of Rai Kunimitsu."
The jigane is constant beneath all of his manners: a tightly packed ko-itame under thick, dust-fine ji-nie, with fine chikei woven in and a nie-utsuri standing in the ji, the steel bright and clear. Here and there a softer patch of hada appears, the so-called Rai-hada, which the record treats as a tell of the school rather than a fault. On the Karyaku 2 dated tanto the notes describe the nie-utsuri near the fukura taking on a yubashiri-like appearance, entering as though drooping down toward the tempered edge, an aspect frequently encountered not only in his work but throughout the Rai group.
His tanto carry the two poles of the range most plainly. The small ones with uchizori, often bearing the simple, skillful suken and gomabashi carvings the record calls most frequent in his work, follow the father so closely, down to the hardening over the machi, that they pass at first sight for Kunitoshi; a slender suguha blade of this class is read as early work. The large ones run wide, sunnobi and nearly without sori, and on them he tempers his midare, notare mixed with gunome or gunome-dominant patterns, in nie a step stronger than on his tachi; these, the sources write, resemble the work of his junior fellow pupil Rai Kunitsugu, being "tinged with the color of the Soshu tradition and filled with bold spirit" (相州伝的色彩をおびて覇気に満ちている). The tanto dated Karyaku 2 (1327) shows the manner already formed, and the largest of the class is the meibutsu Aratami Rai (新身来). The signatures follow the forms: "on tachi the mei is comparatively small" (太刀は比較的に小銘であり), cut low on the tang toward the mune, while on tanto a bold three-character mei is placed below the mekugi-ana; his character for Rai, the record adds, is cut in a form differing from that used by Kunitoshi. A chronology of the mei is established: those of the Karyaku and Gentoku years have a softness, the enclosing kuni component characteristically rounded, while those of Jowa and Kan'o harden and the enclosure turns angular. The long working span and these changes of style and signature sustain an argument for a first and a second generation, which the Kokon Kaji Meizukushi divides around Gentoku to Kenmu and around Koei; yet the single-generation view remains strong, and the published sources leave the question as one that should await further study.
Set beside his father, the judges' formula is exact: compared with Kunitoshi he yields a little in the point of dignity, but gives the impression of surpassing him in force (迫力では優る感がある). His nie runs somewhat stronger, and the chikei in the ji together with the kinsuji and sunagashi in the ha lend the work its vigor. Beside Rai Kuniyuki he lacks the elder smith's expansiveness: the yakiba sits a shade tighter, ashi crowd in, and the boshi tends toward a point. The wide midare tanto can pass at a glance for Rai Kunitsugu, and there the record draws the line in a single sentence: against Kunitsugu his hardening sits a touch lower, and in the sharp boshi with its thrusting tendency (突き上げ気味のするどい帽子) the individuality of this smith can be discerned. Even his standard suguha can momentarily suggest the Enju offshoot; of one such blade the notes say it can at first glance be confused with Enju, but on careful examination proves a step superior. With Kunitsugu he carries the Soshu-tinged manner that closes the Rai mainline into the Nanbokucho period.
Fujishiro grades him Sai-jo saku, and 249 designated works stand on record: three National Treasures and twenty Important Cultural Properties, preserved as patrimony in museums, shrines and long-held collections, with twenty-three Juyo Bijutsuhin and 197 blades in the Tokubetsu Juyo and Juyo tiers beneath them. Signed and unsigned works survive in nearly equal numbers, the tachi mostly osuriage and mumei, the tanto largely ubu and signed. Fifty-seven blades carry recorded provenance, and the roll is of the first rank: a tachi the record calls "a tachi worn by Ieyasu, treasured in the Tokugawa house together with the Honjo Masamune" (徳川家では本庄正宗と共に大事にされた家康佩用の太刀である); heirlooms of the Kishu, Owari and Mito Tokugawa, the Date of Sendai, the Maeda of Kaga, and the Kuroda, Shimazu, Asano, Hosokawa, Ikeda and Satake houses, with pieces from the Imperial Family; among the Hon'ami appraisals that follow them is an origami of Genroku 3 (1690) by Hon'ami Kotsune valuing one Owari Tokugawa blade at 500 kan. Holders recorded against his blades today include the Tokyo National Museum, the Kyoto National Museum, the Tokugawa Art Museum, the Sano Art Museum and the Seikado Bunko Art Museum. For the private collector he is not wholly beyond reach: blades in the Tokubetsu Juyo and Juyo tiers remain in private hands and one appears on the market from time to time, though for a name of this rank such an appearance is infrequent, and an event when it comes.
Kunitoshi (國俊) — Mainline · 1288-1319. Kokuhō, Jūbun, Jūbi, Tokujū, Jūyō. The published sources open Rai Kunitoshi's record with a single settled fact: he was "the first smith of the Rai line to crown his name with the character Rai, and all who followed took the practice from him" (来派で最初に来の字を冠した刀工で、以後皆これに倣った). Traditionally the son of Rai Kuniyuki, he worked in Kyoto at the close of the Kamakura period. Dated blades open in the Shoo and Einin eras, fall silent for a time, then resume in Showa and continue through Bunpo, Gen'o and Genko; a tachi of Showa 4 (1315) in the Tokugawa Art Museum bears the age inscription seventy-five (七十五歳), and a work of Genko 1 (1321), cut at eighty-two, stands near the end of his production. This run of dated pieces is the backbone of the late Kamakura Rai chronology.
His hand is the Rai mainline at its most refined. The tachi are slender or of standard width with a pronounced taper, the curvature koshi-zori, turning to a rounded wa-zori on shortened blades, and the point small or medium. On this body he burns a chu-suguha or hoso-suguha in ko-nie with ko-choji and ko-gunome mixed in; ashi and yo enter well, at times slanting toward the nakago in the Kyoto manner the published sources call kyo-sakaashi. Nijuba appears in places, fine kinsuji and sunagashi run through the ha, and the nioiguchi is tight and bright; the boshi turns in a calm ko-maru, the tip lightly swept. The judgment the published sources attach to the whole is consistent: "a refined and calm manner that is Kyoto work through and through" (いかにも京物らしい上品で穏やかな作風).
The jigane carries as much of the attribution as the hamon: a tightly knit ko-itame with thick, often dust-fine ji-nie, fine chikei, and a nie-utsuri standing clearly over it; one Juyo appraisal adds that "the refinement of the jigane in particular deserves special mention" (殊に地鉄の精良さは特筆される). Here and there the larger, softer patches the texts call Rai-hada (来肌) intrude, and on tanto the hada may flow toward masame in places, both accepted as marks of the school rather than flaws. The packed ko-itame, the fine nie over it and the standing utsuri are what the appraisals return to whenever an unsigned blade is settled on his name.
Nearly half of his published record is tanto: the sources state again and again that where the two-character Kunitoshi left a single example, the meibutsu Aizen Kunitoshi, Rai Kunitoshi left many. These are hira-zukuri and mitsu-mune, of standard width or slightly elongated, with the quiet uchi-zori of the late Kamakura period; the suguha may take a shallow notare, the kaeri of the ko-maru boshi often runs down long, and the hamachi is frequently hardened in. Carving is habitual, a katana-hi with a slender koshi-bi or suken set beside it, or bonji over gomabashi, the added side groove being a practice "peculiar to Rai work" (来物に特有). Suguha rules him, yet a small choji group stands at the opposite limit. Its representative is a National Treasure tachi, and a kodachi raised at the 27th Tokubetsu Juyo session, slender, high in koshi-zori, mixing large-lobed choji with the nie thick in the ha, is called "the most flamboyant range of work in his oeuvre" (同工作例中で最も華やかな作域), "just evoking Niji Kunitoshi" (宛ら二字国俊を彷彿とさせる). That evocation is the heart of the school's classic question, whether the two-character Kunitoshi and the three-character Rai Kunitoshi are one smith or two. The combined dated works run from Koan 1 (1278) to Genko 1 (1321), some forty years and no strain for a single career, and counted back from the age inscription of seventy-five, the lone dated Niji blade falls at age thirty-eight. In recent years, the sources write, re-examination of the workmanship and the signature forms has brought the same-smith view toward acceptance, prompting a rethink of the two-smith position, and the choji blades above are read as key material on his side of the divide. The signatures hold further scholarship: the Gen'o pieces turn cursive enough that the notes weigh his old age against a second generation; rare works add the Minamoto surname; and on a Genko 2 folded-signature katana once worn by Shimazu Narinobu, the character kuni is cut in the manner of his pupil Rai Kunitsugu, read as one of the rare cases of the pupil signing in the master's name, the third such example known.
The contrast with Niji Kunitoshi is the standing formula of his appraisals: against a grand body with ikubi point and a flamboyant choji-dominated midare, the three-character works set a slender or standard build, a suguha or suguha with small-patterned midare, and a gentle effect overall, so the two hands can be told apart even while the one-smith question stays open. His other neighbors lie within the school. At its quietest his hoso-suguha "can at first glance be mistaken for Ryokai" (一見了戒に紛れる), and his calmest, largest tanto are read first toward Rai Kunimitsu before the dignity of the work, "a grade higher" (格調が一段高く), settles the attribution on Kunitoshi. His pupils Rai Kunimitsu and Rai Kunitsugu carried the school through the end of Kamakura, and the line between master and pupils is fine enough that the meibutsu Yuki Rai Kunitoshi, a tanto recorded in the Meibutsucho, is itself said at first sight to suggest Kunimitsu and Kunitsugu.
For a master of this rank he is unusually approachable. Fujishiro grades him Sai-jo saku; five of his blades are National Treasures and eleven are Important Cultural Properties, with twenty-one Tokubetsu Juyo and one hundred forty-three Juyo beneath them, one hundred sixty-four blades across those two tiers. Signed work is abundant, one hundred thirty-four signed against ninety-one unsigned here, which is why his chronology can be written at all. Ten blades are locked in the National Treasure and Important Cultural Property tiers and will never trade, among them the kodachi of Futarasan Shrine at Nikko; the Tokugawa Art Museum holds the age-75 tachi, and other works rest with the Tokyo National Museum, the Nezu Museum, the Sano Art Museum and the Kurokawa Institute. Sixty-one blades carry recorded provenance: Toyotomi Hideyoshi, the shoguns Tokugawa Hidetada and Iemitsu, the Owari and Kishu Tokugawa, the Maeda, the Uesugi, the Shimazu of Kagoshima and the Sanada of Matsushiro. Yet thirty-six works are recorded in private hands and many more sit in the tradeable Juyo tiers, so a suguha tanto or tachi by Rai Kunitoshi, late Kamakura Yamashiro work in its purest form, remains a goal a serious collector can actually reach; the choji blades and the dated pieces stand effectively beyond the market.
Kuniyuki (國行) — Mainline · 1259-1260. Kokuhō, Jūbun, Jūbi, Tokujū, Jūyō. Rai Kuniyuki was, in the words the published sources return to again and again, the de facto founder of the Rai school of Yamashiro, working in the mid Kamakura period. None of his own blades carries a production date, but the two-character Kunitoshi, transmitted as his son, left a tachi dated Koan 1 (1278), and on that footing the published sources affirm the usual reckoning that places Kuniyuki around the Shogen and Bun'o years. He stands at the head of the line the late-Kamakura Yamashiro tradition would be built upon, and his signed tachi survive in comparatively large numbers while a single reliable tanto is all that is known, exactly as for that same Kunitoshi.
The shape of his tachi is not one thing. The published sources describe a range that runs from slender, orthodox builds to broad, powerfully made blades, with the point typically tied off in an ikubi manner. The signed, ubu pieces keep a high, wheel-like curvature and a small point of real grace; the great mass of the surviving work is o-suriage and unsigned, wide in the body with a thick kasane, and even after shortening it holds a deep wazori and a weighty, dignified bearing that reads at once as mid Kamakura.
The jigane is the constant. It is a finely forged ko-itame, at times carrying itame, mokume and a little nagare-hada, worked until it is dense and refined; over it the ji-nie lies thickly in minute particles, fine chikei enter, and a nie-utsuri rises that in places shades toward a midare-utsuri. The steel is strong and clear, and the bright, refined forging that the connoisseur reads as Rai-hada is the first thing the eye should settle on. This is the calm, lustrous jigane on which everything else is staged.
Over that jigane Kuniyuki tempers a wide, suguha-toned ha rather than the full choji of contemporary Bizen. Into it he mixes ko-choji, ko-gunome, small midare and squared-off elements, so that the temper is complex and changeful without ever becoming a clamorous midare; ashi and yo enter densely, often as the Kyoto-style saka-ashi, the nioiguchi runs deep and bright, ko-nie attaches thickly, and kinsuji and sunagashi move through the body of the ha. At the crests of the undulations small tobiyaki and yubashiri sometimes gather into a kiji-mata or gan-mata figure, and muneyaki may appear above. It is a temper of restraint and activity at once, the activity carried in the nie rather than in the height of the pattern.
The boshi is where his hand is most easily misjudged. It is not a plain ko-maru. A ko-maru is indeed the most frequent turnback, but it is most often drawn out by hakikake, the brushed nie of the point continuing the work of the ji below; the published sources describe a boshi that vigorously brushes (盛んに掃きかける) and that turns back in a small round with a slightly pointed tendency (先小丸やや尖りごころに返る). In many blades it falls into a midare-komi with a pointing tip (帽子は小さく乱れ込み、先尖りごころ), at times genuinely pointed, at times burned through in a yakizume manner. A reading that names only the small round and the irregular turnback misses the swept tip that is in fact the dominant feature, and for recognition the hakikake belongs in the first rank of his boshi traits beside the ko-maru itself.
For a founder of his rank the named histories are heavy. A signed Tokubetsu-Juyo tachi descended in the Kuroda family of Chikuzen and carries an origami of Genroku 14 (1701) by Hon'ami Kochu (本阿弥光忠) valuing it at one thousand kan, with Goto fittings on its tachi mounting; another o-suriage blade passed through the Shimazu family of Satsuma; signature variants are read against a piece formerly in the Ogasawara collection, and his blades reach into the Tokugawa houses as well. His work numbers a National Treasure and many Important Cultural Properties, and within the published catalogues his Tokubetsu-Juyo and Juyo entries together run to roughly a hundred, a count that places him among the very highest of the koto Yamashiro masters and makes a freely tradeable example a genuine rarity.
Kunitoshi (國俊) — Mainline · 1278-1288. Jūbun, Jūbi, Tokujū, Jūyō. A single dated work anchors the two-character Kunitoshi in time: a tachi inscribed in Koan 1 (1278), designated an Important Cultural Property and preserved in the Tokyo National Museum. Its maker, Kunitoshi of Yamashiro, cut his name in two characters only, without the character Rai, and the published sources accordingly call him Niji Kunitoshi, the two-character Kunitoshi, to part him from the smith who signed Rai Kunitoshi in three. He is traditionally recorded as the son of Rai Kuniyuki, and of the Rai mainline he stands closest to his father, down to details of forging and carving that the designation records trace from one hand to the other. He worked at the school's grand mid-Kamakura moment, and whether he and the three-character Rai Kunitoshi are one man or two remains the classic question of the Rai school, carried in nearly every published entry as an open verdict.
The hand the published sources describe as typical is the most flamboyant in the Rai mainline. His blades run wide in mihaba with little taper from base to point, the kasane thick, the curve a deep wa-zori, the point a compact, stout ikubi-kissaki. Over this powerful build he burns a choji-dominant midare in ko-nie-deki, so showy that the records repeat the verdict of the old books that it "resembles the Bizen Ichimonji" (備前一文字などに似たり). Ashi and yo crowd into the ha, sunagashi and kinsuji stream through it, and yubashiri plays at the heads of the yaki. Patches of muneyaki lie along the back, a feature one entry names a habit of the Rai hand (来物の手癖). The Kyoto marks are stated just as plainly: the nie within the ha is markedly strong, the stated point of difference from Bizen; the utsuri that rises is, as a rule, a nie-utsuri; and the ashi, chiefly on the wearing side, slant back toward the nakago, opposite to the Bizen direction, the so-called kyo-sakaashi (京逆足).
The jigane is in his father Kuniyuki's manner, an itame of comparatively large texture with a tendency to stand, under ji-nie laid thick and fine chikei, the steel bright. Beside the usual nie-utsuri a midare-utsuri rises on occasion; one Tokubetsu Juyo entry notes a midare-utsuri accompanied by a dark band as a rarity otherwise confirmed on signed works of Rai Kunitoshi and Ryokai, so that even his exceptions stay inside the school. On the flamboyant works the boshi runs in midare-komi, sweeps in hakikake, and often finishes near yakizume with considerable force, while the calmer works settle into a quiet ko-maru. Most blades carry bo-hi, and on more than one the groove at the koshimoto holds a suken in relief, a carving the published sources point out exists in the same form (同調の彫物) on work of Kuniyuki.
Signed works are comparatively few, and nearly all of them are tachi. The published record long repeated that his tanto came to "merely one piece" (僅かに一口), the meibutsu Aizen Kunitoshi, an Important Cultural Property, until a second signed tanto was recognized at the 61st Juyo session and later raised to Tokubetsu Juyo, its signature judged on the close likeness of the character for Kuni to the dated Koan 1 tachi. It is on the signed blades that a second, quieter register concentrates: a chu- or hiro-suguha with ko-choji and ko-gunome over a tight ko-itame with dust-fine ji-nie, the boshi a calm ko-maru. The sources read a shu-mei tachi from the Kishu Tokugawa house as showing "a workmanship close to Kuniyuki" (国行に近接した出来口), judge the ubu tachi of the Owari Tokugawa "hardly different from Rai Kunitoshi" (来国俊と殆ど大差のない), and call a signed tachi in true suguha "precious material" (貴重な資料) should the one-smith theory be argued. The scholarship turns on exactly this. The dated examples of the two signatures span Koan 1 to Genko 1, about forty years, no impossible working life for a single smith; counted back from the Rai Kunitoshi tachi dated Showa 4 (1315) with an age of seventy-five, the same man would have been thirty-eight in Koan 1. Against this the Kaifunki draws the line another way: "the two-character Kunitoshi was Kuniyuki's heir and died young; Rai Kunitoshi was the second son, and from him the cutting of the character Rai began" (二字国俊是は国行が嫡子也。若時死たり。来国俊国行が二男也。是より来の字を打初むる). The most recent designation entries record that re-examination of workmanship and signatures has lately revived the one-smith view, prompting, in their words, a reconsideration of the two-smith position.
Against the Ichimonji, the smiths his work most resembles, he is told by his own marks: the strength of the nie within the ha, the utsuri rising as a nie-utsuri, and the kyo-sakaashi slanting toward the nakago. One Juyo entry states the position from inside the school, placing him in a working range that, within the Rai school, can pass among the showy productions of the Ichimonji and Osafune. His place in the lineage is double. Upstream he is the nearest of the Rai smiths to Kuniyuki, sharing the standing itame, the muneyaki and the carving in the groove; downstream his calm signed suguha flows directly into the refined manner of the three-character Rai Kunitoshi. Brother, father or the same man's earlier self, he is the bridge over which the school's grand mid-Kamakura style passes into its late-Kamakura refinement.
Fujishiro grades him Sai-jo saku, the highest rank. Eighty-four designated works stand on record: twenty-one Tokubetsu Juyo and forty-eight Juyo, sixty-nine blades in those two tiers together, with nine Juyo Bijutsuhin and four Important Cultural Properties above them, among the last the Aizen Kunitoshi and the dated Koan 1 tachi of the Tokyo National Museum. The meibutsu Torikai Kunitoshi, a kodachi of one shaku nine sun nine bu listed in the Meibutsucho, passed to the Owari Tokugawa after the death of Tokugawa Ieyasu and is held by the Tokugawa Reimeikai Foundation. The provenance roll is substantial: nineteen blades carry recorded histories through the Owari and Kishu Tokugawa, the Maeda, Hosokawa, Uesugi, Date, Asano, Yamauchi, Hachisuka and Matsudaira houses and the Imperial Family, one Owari blade entering the registers as a Suruga Tokugawa distribution piece ranked in the house's highest group (仁壹ノ廿), with Hon'ami origami of Genroku and Hoei attached to others. His Important Cultural Properties are patrimony, preserved in the Tokyo National Museum and in long-held collections, and of the remainder the recorded whereabouts run heavily to institutions and old families. For the private collector the realistic field is the Tokubetsu Juyo and Juyo tier, some sixty blades that can in principle change hands; in practice they are held far more often than they are traded, and a two-character Kunitoshi coming to market is a rare event, standing at the very top of the field when it does.
Kunitsugu (國次) — Mainline · 1311-1327. Kokuhō, Jūbun, Jūbi, Tokujū, Jūyō. On the *tanto* recorded in the Meibutsu-cho as the Torikai Kunitsugu (鳥養国次), the NBTHK writes that the work of Rai Kunitsugu shows "the strongest *nie* of *ji* and *ha* within the whole Rai school" (来一派の中では地刃の沸が一番強い), and that single judgment carries the essence of the smith. The published sources place him at the very end of the Kamakura period, his activity reaching into the first years of Nanbokucho, where he stands beside Rai Kunimitsu, his slight senior, as one of the two masters who bring the Rai mainline to its close. His genealogy is unsettled across the published record: the usual account makes him a pupil of Rai Kunitoshi, one account a cousin of Rai Kunimitsu, others the son of Kunitoshi or Kunimitsu's younger brother. From of old he has been counted among the Ten Brilliant Pupils of Masamune (正宗十哲) and carries the name "Kamakura-Rai" (鎌倉来), a name the published sources explain by the manner of the work itself.
That manner is a *hamon* the earlier Rai never showed: a *midare*-dominant temper of *notare* mixed with *gunome*, the *nie* thick and bright, *kinsuji* and *sunagashi* sweeping through the *ha*, *yubashiri* drifting along the *habuchi*. The *kitae* sets thick *ji-nie* over *itame* and weaves in frequent *chikei*, in places standing slightly. The recurring verdict of the published sources is that this is a workmanship "strongly shaped by the influence of Soshu-den" (相州伝の影響を多分に受けた出来口), and the comment of Honma recorded against another of his Juyo Bijutsuhin *tanto* holds the same line, that within the Rai school the *nie* of his *ji* and *ha* is conspicuously strong. Even an absence points the same way: compared with general Rai work, his *ji* shows fewer of the soft *rai-hada* patches typical of the school. The *boshi* of this register runs *midare-komi* or with a pointed tendency, often swept with *hakikake*.
Beneath the Soshu color the *jigane* stays Rai. The forging in his finest pieces is a packed ko-itame, the *ji-nie* fine and thick, *chikei* entering finely, and a pale *nie-utsuri* rising over the *ji*, the anchors that keep the work Kyoto. His most numerous surviving class is the wide *osuriage mumei* *katana*, often in a deep *wa-zori* with the *chu-kissaki* extended. On these blades a *suguha*-toned base mixes ko-gunome and ko-choji; *ashi* and *yo* enter long, thick and without pause; the *nie* sits deep into the *ha*, *kinsuji* and *sunagashi* run, and *nijuba*-like *yubashiri* plays at the edge. The deciding point is stated outright in the published sources: where the *ji* and *ha* are unusually bright and the *nie* strong, "if one fixes on the point that the *nie-ashi* stand out within the *ha*, an attribution to Rai Kunitsugu is judged proper" (刃中の沸足が目立っている点に着眼すれば来国次と鑑するのが妥当). One Juyo *katana* is described as reading "just as though the *midare* he tempers on his *tanto* had been rendered on a long blade" (宛ら同工の短刀に焼く乱れを太刀にあらわした感).
His signed work is nearly all *tanto* and ko-wakizashi; the published sources repeat that surviving *tachi* are scarce, and that *ken* and *yari* survive only in the rarest examples. The *tanto* are signed below the *mekugi-ana* at the center of the *nakago* with a large, thick-chiseled three-character *mei*, while the slender signed *tachi* with high *koshizori* carry an elongated, finely chiseled, smaller signature that the NBTHK reads as his early hand, valued for showing the change of his manner over time. A minority of works keeps the older Rai style unaltered, a quiet *suguha* with ko-choji, the *nie* at ordinary strength; the *tanto* handed down in the Uesugi house is called "a calm register that holds faithfully to the Rai tradition" (来派の伝統を墨守した穏やかな作域), and such work is noted as extremely rare for him. Dated pieces are nearly absent: the *ken* of Karyaku 2 (1327) is his earliest surviving date, worked, as with other smiths of the period, in Yamato-den; a *tanto* of Shokei 1 (1332) also survives, and Gentoku dates are known only from the old sword albums. On the tradition that he studied under Masamune the NBTHK itself is careful: since Kunimitsu too at times shows the same *nie*-strong manner, it writes, to affirm the pupil legend from the style alone would be "premature" (早計).
The comparison that fixes his place is drawn against Rai Kunimitsu. Kunimitsu also left *midare* work beside his traditional *suguha*, but in his case, the published sources observe, the *suguha* far outnumber the *midare*, and "Kunitsugu is the opposite" (来国次はそれとは反対). One Juyo text goes further, judging that he carries the *nie* even beyond the *nie*-emphasized *midareba* of his senior, a manner the earlier Rai never had. Among the forebears of the line, Kuniyuki, Niji Kunitoshi, Rai Kunitoshi and Kunimitsu, he is the one who retains the least of the traditional Kyoto style, which is exactly why the old Masamune-pupil account drew attention. The judges also leave him room: various atypical pieces (変り出来) are acknowledged within his work, and his few signed *tachi* differ among themselves. With Kunimitsu he carries the Rai mainline to its close in early Nanbokucho, and the Kamakura-Rai name marks his position as the school's Soshu-facing edge.
Fujishiro grades him Jo-jo saku. One of his blades is a National Treasure and four are Important Cultural Properties, patrimony preserved wholly outside the market; beneath them stand fourteen Tokubetsu Juyo and forty Juyo, fifty-four blades in those two tiers, out of sixty-five designated works on record, twenty-nine of them signed against thirty-six unsigned. The Torikai Kunitsugu itself was certified Juyo Bijutsuhin in 1933. The provenance roll is of the first rank: the published sources single out the famous *tachi* handed down in the former shogunal house and in the Maeda house; another *tachi*, recorded in the Tokugawa Jikki, was presented by the shogun Tokugawa Tsunayoshi to Yanagisawa Yoshiyasu in Genroku 15 (1702); a *katana* passed from Matsudaira Nobuyasu, Ieyasu's eldest son, to his retainer Hiraiwa Chikayoshi; and *tanto* descended in the Uesugi, Asano, Okubo, Nabeshima and Ikoma houses and in the Yamauchi of Tosa, whose blade went to the shogunal house as a memorial gift in Kyoho 5 (1720). Of recorded whereabouts today, examples rest in the Tokyo National Museum, the Sano Art Museum and the Hikone Castle Museum. For the collector the picture is that of a major Rai master whose designated works are held far more often than they move: a *mumei* *katana* or *wakizashi* of the Juyo tier appears from time to time, a signed *tanto* only rarely, and a piece of the order of the Torikai Kunitsugu can only be awaited as an event.
Ryokai (了戒) — Mainline · 1288-1305. Jūbun, Jūbi, Tokujū, Jūyō. Ryōkai of Yamashiro Province founded the Ryōkai school, one of the Rai offshoots of the late Kamakura capital, and worked in the same years as Rai Kunitoshi: his surviving dated blades carry the era names Shōō, Einin, Kagen and Engen. The old account makes him a son or a pupil of Rai Kunitoshi, but the published sources note that the dated pieces place him almost level with Kunitoshi, so that he reads more naturally as a fellow disciple (aitedeshi); and if the 'two-character Kunitoshi' and Rai Kunitoshi are taken as different men, Ryōkai would instead be the son of the two-character Kunitoshi. Either way his is the Rai Yamashiro hand softened a degree, and the published record fixes the difference precisely, noting that with him 'the ji and ha can feel somewhat less forceful' (地刃がやや弱く感じられる) than Kunitoshi's. He is Jō-saku in Fujishiro's grading, the head from whom the Ryōkai line descends.
The hand the published descriptions assign him is a quiet one. Over a packed itame or ko-itame, often flowing toward masame and standing a little open, fine ji-nie adheres thickly and fine chikei enter, and a whitish shirake-utsuri stands in the ji. The temper is a calm chū- or hoso-suguha, mixing here a small ko-chōji, ko-gunome or ko-midare, with ko-ashi and yō entering, sometimes a Kyoto-style reverse ashi along the edge. Its distinguishing mark is the nioiguchi: it tightens and grows austere, and in places clouds into urumi, that moist, soft quality the published sources name again and again as a Ryōkai point. The judges set the contrast with the parent Rai exactly, writing that compared with Kunitoshi 'the nioiguchi is one degree tighter and the activity within the temper lonelier, breaking in places into urumi' (来国俊より一段と匂口が締まって刃中が淋しく、部分的にうるみごころを呈し). The boshi closes sugu into a ko-maru, often brushed with a little hakikake.
The ji is where the school turns from Rai toward Yamato. The forging carries masame mixed into the itame, the published record observing that the jihada 'shows more masame tendency than in Rai Kunitoshi' and takes on a whitish cast, and the shirake-utsuri that rises with it is the first thing that separates a Ryōkai blade from its parent: where Rai keeps a clear, bright midare- or jifu-utsuri, Ryōkai stands a paler, drier shirake. On the finest tachi the steel shows ko-itame in a piled manner with chikei and a faint jifu-utsuri, the Kyoto refinement still legible beneath the school's drift; on the plainer katana the grain flows openly toward masame and the utsuri whitens further. Fine kinsuji and sunagashi run within a tight, bright nioiguchi, faint hotsure and kuichigai-ba fray the habuchi, and the boshi keeps to its ko-maru.
His work survives in two registers of the one manner. The signed pieces are slender ubu tachi and tantō, the mei a boldly cut two-character Ryō-kai set toward the mune above the first mekugi-ana; the tachi keep a high koshizori toward a small kissaki, the tantō run in uchizori with a thick kasane, the typical late-Kamakura Kyoto tantō, several carved with bonji and suken on the omote and gomabashi on the ura. Of one such tantō the published sources write that, complete in every part, it is 'altogether elegant' (いかにも典雅である), a work that 'may well be called a representative work of Ryōkai' (了戒の代表作と称してよく), adding that 'the signature too is of the archetypal type' (銘字も典型的である). The second register, and the bulk of the designated record, is ōsuriage mumei katana given to him on the hand: the wa-zori and Kyoto air recall Rai at first glance, but the tightening, sinking, clouding nioiguchi, the flowing masame and the shirake settle the attribution to Ryōkai. A small number of collaborative dated blades signed with his son Hisanobu also survive, the work close to the father's suguha, signed examples of the son being very rare.
The distinction the judges draw most often is the one against Rai itself, for the school stands so close to its parent that the two are confused at sight. The published record states it plainly: Ryōkai 'is often mistaken for Rai Kunitoshi' (まま来国俊に紛れるが), the attribution then settled not by any single feature but by the softer ji and ha, the masame in the jihada, the whitish utsuri and the clouding line, since 'the nioiguchi has an urumi quality, and the ji carries more masame than Rai Kunitoshi' (匂口にうるみごころがあり、地に来国俊よりも柾気がある). His own grounded tells separate him from the sister Enju school as cleanly: where Enju turns the boshi in a large, deep o-maru, Ryōkai closes sugu into a small ko-maru, and his suguha clouds into the urumi that Enju leaves bright. Downstream the Ryōkai name ran for several generations, his son Ryō Hisanobu next, and by the Nanbokuchō and Muromachi eras a Kyushu branch had formed, the Chikushi Ryōkai of Bungo and Buzen descended from the Kyoto line.
Ryōkai is a smith of real standing whose designated work can still be encountered, though sparingly. Of his blades on the official record, two are Important Cultural Properties, among them the famed Akita Ryōkai tantō; four are Tokubetsu Jūyō and eighty-three Jūyō, eighty-seven across the Tokujū and Jūyō tiers. The Important Cultural Properties are patrimony, held and studied rather than traded, and most of the designated blades, signed or attributed, are kept in long-held public and private collections, among them the Tokyo National Museum, the Sano Art Museum and Monobe Jinja, with prewar Jūyō-Bijutsuhin pieces recorded against the Maeda and other houses. One tachi preserves a tradition that it was 'a sword worn by Miyamoto Musashi' (宮本武蔵佩刀との伝え), and his blades pass through the Isahaya, Date and Maeda families. Of the works whose whereabouts are recorded, only the Tokubetsu Jūyō and Jūyō tier reaches the market, and then rarely; a signed ubu Ryōkai tachi or tantō in particular is among the scarcer things a collector of Kyoto Kamakura work will meet, coming to hand only with patience.
Mitsukane (光包) — Mainline · 1303-1306. Jūbun, Tokujū, Jūyō. Mitsukane of Yamashiro, active at the end of the Kamakura period, is recorded as a pupil of Rai Kunitoshi and, in the NBTHK's recurring phrase, "a smith apart within the Rai school" (来派中異色の刀工). Tradition gives him a Bizen chapter as well: he is said to have gone to Osafune and studied under Nagamitsu, and on the order of events the published sources are precise, observing that "most transmitted records state that he first studied under Nagamitsu and afterwards entered the school of Rai Kunitoshi" (はじめ長光に学び、のち来国俊の門に入ると記す伝書が多い). He lived and worked at Tozu in Omi, whence the name Tozu Rai (戸津来), and by the legend the texts repeat in nearly every designation he withdrew to forge at the Konpon Chudo, the central hall of Enryaku-ji on Mt. Hiei, whence the name by which he is best known, Chudo Rai (中堂来). He signed with the two characters Mitsukane alone, never crowning the signature with the character Rai. About scarcity the record is emphatic: "examples encountered are extremely few; there are no tachi, only tanto" (経眼する遺例は極めて少なく), and the signed work is confined to tanto.
The build announces him before the steel does. His tanto are hira-zukuri with mitsu-mune, somewhat elongated and often a little wide in the mihaba, with *uchizori*, and the published sources fix the construction in a standing formula, naming "the thick kasane and sturdy construction" (重ねの厚い丈夫な造込み) together with a *boshi* "whose roundness is large and whose kaeri returns wide, deep and long" (帽子の丸みが大きく且つ返りの焼幅が広く長く返る) among the features to see. The oldest commentary in the corpus already treats both points as his habit, writing that "there is rather more variation within the ha than in his teacher Rai Kunitoshi, and the kaeri of the boshi is as a rule long" (師の来国俊よりもむしろ刃中の変化があり). The hamon itself is a *suguha* in the manner of his teacher, though one designation adds that he "burns a suguha wider than Kunitoshi's" (来国俊より広い直刃を焼き). Into the quiet line mix *ko-midare*, a feeling of *ko-choji* or *ko-gunome*, and *kuichigai-ba*; *ashi* and *yo* enter, the *nioi* runs deep, *ko-nie* lies thickly, and *kinsuji* and fine *sunagashi* work through a *nioiguchi* that stays bright and clear.
The *jigane* is the declared tell, and the NBTHK states it almost verbatim across the later texts: the jigane of this smith "has as its special quality that the ji-nie is laid on exceptionally thickly so that it looks strong, and the loose, weak texture called Rai-hada is in general rare in him" (地沸を一際厚く敷いて強く見えるのが持味). The kitae is a finely packed *ko-itame*, mixing flowing hada toward the ura or along the edge and a touch of larger hada at the koshimoto; the *ji-nie* sits dust-fine and thick, a *nie-utsuri* rises, and the steel is bright. One designation widens the contrast to the whole school, finding that "the jigane is stronger and clearer than that of Rai Kunitoshi or Rai Kunimitsu" (地がねが来国俊や来国光よりも強く冴えている) and naming that strength a point to see. The old kantei literature reached the same judgment in its own words: the NBTHK quotes the Edo text Nyote-hikisho (如手引抄) to the effect that, compared with Kunitoshi, the color of his ji is bluer and clear to the bottom, the nie fine and vivid, "like the nie of Awataguchi Yoshimitsu" (粟田口吉光景気の沸のごとし). Horimono appear on a few pieces, *gomabashi* paired with a stout *koshi-hi*, or a *suken* on the omote with *bonji* on the ura.
Against this suguha mainstream the texts set exactly one exception, rehearsed in nearly every designation: "there exists one single work that burns a midare-ba led by gunome, of a kind that underwrites the theory that he was Nagamitsu's pupil" (唯一口、長光門人説を裏付けるような互の目主調の乱れ刃を焼いた作), the meibutsu Midare-Mitsukane (名物乱光包), an Important Cultural Property whose deki at first sight recalls Bizen. The oldest text in the corpus names the Bizen teacher as Kagemitsu rather than Nagamitsu, judging works of this group "almost the image of Kagemitsu, though stronger than Kagemitsu in the nie of ji and ha"; the later texts settle on Nagamitsu. The surviving record divides as well by signature. The signed pieces are slender *nijimei* tanto in a fine suguha, while the broad wide-suguha examples are the larger unsigned works, among them a *sunnobi* wakizashi carrying not a signature but a *shu-mei*, the Hon'ami house's red-lacquer attribution reading Mitsukane with Hon'a and a *kao*, whose deki the NBTHK judges "an accomplishment surpassing even the signed Mitsukane" (在銘の光包を凌ぐほどの出来映え); the document of its old scabbard records that the fifth shogun Tsunayoshi presented it in Enpo 8 (1680) to mark his son Tokumatsu's move to the Nishinomaru of Edo castle.
In kantei he stands as the strong pole of the Rai school. Where the school's quiet suguha can ride on a soft, loose jigane, his carries nie laid on thickly over a tight ko-itame; where his teacher's tanto are slender, his run thicker in the kasane and a little longer in the body; the suguha is wider, the movement within it greater, and the boshi rounder, its kaeri deeper and longer. The literature reaches past his own school for the comparison, likening the fineness and vividness of his nie upward to Awataguchi Yoshimitsu rather than across to his Rai fellows. The texts name no pupils and no continuing line, and his manner closes with him; what remains is a small, coherent body of tanto in which, as the published sources put it of the best examples, the typical manner of Chudo Rai Mitsukane is displayed to the letter.
Fifteen designated works stand on the official record: four Important Cultural Properties, among them the Midare-Mitsukane and a signed tanto transmitted in the Date family, three Tokubetsu Juyo, and eight Juyo, eleven blades in all in the Tokubetsu Juyo and Juyo tiers; five of the fifteen are signed, ten unsigned. The provenance recorded against them runs through the great houses of the Edo period. The meibutsu Kuwayama Mitsukane (名物桑山光包), an ubu mumei tanto listed in the Kyoho Meibutsu-cho, takes its name from Kuwayama Iga-no-kami Motoharu, passed to the third shogun Iemitsu, was granted by him to Maeda Toshitsune, and descended thereafter in the Maeda family; it stands today among his Tokubetsu Juyo. The shu-mei wakizashi descends from the Tokugawa main line. Of recorded whereabouts, his blades rest with the Tokyo National Museum, the Fukuyama Art Museum and the Kurokawa Research Institute, with one in private hands. The four Important Cultural Properties are patrimony, preserved where they are; the eleven blades of the Tokubetsu Juyo and Juyo tiers are what a collector could in principle encounter, and for a smith whose surviving examples the published sources themselves call extremely few, one reaching the market is a rare event.
Kuninaga (國長) — Mainline · 1329-1331. Jūbun, Tokujū, Jūyō. Kuninaga is the smith the published sources call Nakajima Rai, a pupil of Rai Kunitoshi who left Yamashiro and settled at Nakajima in Settsu, carrying the Rai manner forward into the Nanbokucho period. The *Meikan* records two generations of the name, placing the first about the Gentoku era at the close of Kamakura and the second about the Shohei and Oan eras; only the three-character signature Rai Kuninaga (来国長) is known, and not a single dated work survives. From this scarcity grows the central scholarly fact about him: the published commentary holds that he resembles Rai Kunimitsu while falling slightly short of him, and it makes the Nakajima Rai attribution itself a standing question of connoisseurship rather than a settled record. His *jigane*, his quiet temper, and a signature that comes in one form alone are what the judges read him by.
The constant of his work is the *jigane*. Over a well-forged *itame* he mixes *mokume* and a flowing *nagare-hada*, the grain tending to stand a little, *hada-tatsu*, with thick *ji-nie* and frequent bold *chikei*. His is a faint *utsuri* or a quiet *nie-utsuri* standing on this open, standing grain, the steel a step away from the closely packed *jigane* of the Yamashiro Rai mainstream. That standing *itame* is the feature the judges mean when they place him just below Kunimitsu; it is also, by their own account, the basis of the attribution problem. Examining his mumei katana, one of them writes that the Nakajima Rai *kiwame* has from old times been directed to *suguha* works of somewhat lesser technical level than Kunimitsu, and asks whether the convention is sound: 「やや技術が劣る直刃出来の作をそれに当てている事が、果して妥当なりや否やという問題に始まる」 (the matter begins with the question of whether it is right that suguha works of somewhat inferior technique have been assigned to him). For the present, the commentary follows tradition.
Over that *jigane* his temper stays calm. The characteristic line is a *suguha*-toned or medium *suguha* into which *ko-gunome*, *ko-choji* and a shallow *notare* enter, with *ashi* and *yo*, *ko-nie* well adhered, and *kinsuji* and *sunagashi* running through, the *nioiguchi* now tight, now bright. The *boshi* runs straight to a small *ko-maru*, or sweeps with *hakikake* to a slightly pointed turnback. This restrained register, not the flamboyant *choji* of a Bizen hand, is the Rai inheritance he carries; and the published sources note that the first generation in particular was proficient in *suguha*, 「初代は直刃を得意」とした. It is the steel and this quiet edge, taken together, that the judges weigh against Rai Kunimitsu, finding the resemblance plain and the refinement a degree less.
The record divides cleanly along the line of signature and form. The body of it is the *o-suriage*, *mumei* katana attributed to Nakajima Rai, wide in body with a *chu-kissaki* over the standing *itame*, the temper a broad or medium *suguha*, often carved with a plain *bo-hi*. The signed pieces, encountered only from time to time, are the work of the second generation in *hira-zukuri* with *mitsu-mune*, wide and slightly elongated with a thin *kasane*, the three-character signature cut large below the *mekugi-ana*. The published sources draw a distinction within his own work: the first generation was the *suguha* hand, while in the second 「二代にはむしろ直刃の作は少なく」, more irregular *notare* tempering becoming common. The signed *wakizashi* and *tanto* keep a consistent carving habit, a *suken* on the *omote* and *gomabashi* on the *ura*, each with a *tsume* beneath, a devotional program that sets them apart from the grooved mumei blades.
One piece stands outside every part of this account. A Tokubetsu Juyo *wakizashi*, signed by *kinzogan-mei*, breaks the calm: over an *itame* with flowing *nagare*, *ji-nie*, *chikei* and a *nie-utsuri* standing strongly on the *ji*, he sets a *gunome* mixed with *choji* and *ko-notare*, and in the upper half *tobiyaki* with a *yubashiri*-like feeling intermingle until the whole becomes a *hitatsura* that undulates flamboyantly. The published commentary calls it 「来派の作としては異色な出来口」 (an idiom unusual for a Rai work), the activity within the temper abundant and the *nie-utsuri* strongly expressed, an outstanding example among this smith's work and 「資料的にも頗る貴重」 (extremely valuable as documentary material) for the breadth of expression possible within the Rai tradition. What separates Kuninaga from his Yamashiro source is exactly this: his is the Rai manner carried a step away from its origin, the *jigane* standing where Kunimitsu's is packed, the *utsuri* turned to *nie*, and the school's reserve held even where, once, it gives way to *hitatsura*.
For the collector Kuninaga is a scarce Nanbokucho name whose extant work, signed and attributed together, is exceedingly few. He has no National Treasures. His record runs instead through the Important Cultural Properties, a signed first-generation *tachi* in *suguha* preserved at Eirin-ji in Yamashiro and an attributed *tachi* held at Sakurayama Shrine, with two Tokubetsu Juyo blades and a long run of Juyo pieces carrying the rest. The denrai roll is a daimyo one, the Hisamatsu Matsudaira house, former lords of Matsuyama in Iyo, the Owari Tokugawa, and other Matsudaira lines among recorded owners. The published sources call one signed example 「同作中のみならず同名中の白眉」 (the finest not only among surviving works but among all smiths bearing this name). Most of his blades are held rather than traded, and a signed Nakajima Rai comes to light only seldom, so a privately held example is a notable thing for a collector to encounter, and a document of how the Rai line continued once it had left Kyoto.
Echizen (越前) — Mainline · 1312-1317. Jūbun, Tokujū, Jūyō. Shodai Echizen Yasutsugu was born in Shimosaka-gō, Sakata District, Ōmi Province, where he styled himself Shimosaka Ichizaemon. He later moved to Echizen and entered the service of Yūki Hideyasu. In his early phase he signed "Higo Daijō Shimosaka," but between Keichō 10 and 11 (1605–1606) he was summoned to Edo, where he forged swords in the presence of both shoguns Ieyasu and Hidetada. In recognition of this distinction, he was granted the hollyhock crest (*aoi-mon*) and the character *yasu*, after which he adopted the name Yasutsugu. This direct patronage by the Tokugawa house placed him among the most politically elevated smiths of the early *shintō* period.
His forging is characteristically dense *itame-hada* mixed with *mokume*, exhibiting extremely fine *ji-nie* and well-entering *chikei*; overall the steel tends toward a dark tone, producing what is termed *Echizen-gane*. His *hamon* is typically based on a medium *suguha* or shallow *notare*, accompanied by linked *ko-gunome*; *ko-ashi* enter well, *nie* adheres thickly, and fine *kinsuji* and *sunagashi* appear in places. The *nioiguchi* frequently shows a *shizumi* tendency, lending a deep, savoury quality. His *bōshi* commonly rises in a *suguha* tone with a pointed tip in a *Jizō*-like manner, with vigorous *hakikake* and a long turnback. Notably, his finest works display a tightly forged *ko-itame* of excellent quality with a bright *nioiguchi*, departing from the more usual standing grain. His *horimono* are deeply cut and forceful, rendered in characteristic *kinai-bori*, with triad compositions of Fudō Myōō with the two *dōji* attendants appearing as a signature motif.
Shodai Yasutsugu occupies a foundational position in the Echizen tradition and among the official smiths of the Tokugawa shogunate. His works combine the powerful, dignified *sugata* of the Keichō era — wide *mihaba*, thick *kasane*, and elongated proportions — with a subdued depth of *nie* and surface activity that rewards close appreciation. His distinctive steel quality, intentional variation of tempering patterns, and superb sculptural carving together distinguish him as one of the preeminent smiths of early *shintō* swordmaking.
Ryokai (了戒) — Mainline · 1308-1311. Jūbun, Jūyō. Ryokai was a smith of the Rai lineage in Yamashiro Province whose common name (*zokumyo*) was Kurozaemon no Jo, as attested by a tachi dated Kagen 3 (1305) inscribed "Yamashiro no Kuni junin Kurozaemon no Jo ... saku." Tradition holds that the first-generation Ryokai studied under Rai Kunitoshi, and one account further relates that he became Kunitoshi's adopted son. However, since dated works by Ryokai are known bearing era names spanning Shoo (1288-1293), Kagen (1303-1306), Enkyo (1308-1311), and Ocho (1311), the NBTHK considers it more reasonable to regard him as a contemporary of Rai Kunitoshi -- a swordsmith who established a different line and formed an independent lineage -- rather than necessarily Kunitoshi's direct pupil. Several generations bore the Ryokai name; in later times some are thought to have moved to Kyushu, and smiths signing "Ryokai" are found extending into the Muromachi period.
Ryokai's workmanship shares a clear line of continuity with that of Rai Kunitoshi, yet it possesses distinguishing traits the NBTHK identifies as key points of appreciation. The forging shows a *masame-gokoro* -- a tendency toward straight grain -- in which a whitish *shirake* cast stands out conspicuously. The temper is a rather quiet, restrained *suguha* whose *nioiguchi* is tight, with *ko-nie* adhering, and which further displays a tendency toward *urumi*, a moist, soft quality that produces a particularly distinctive character. In some works *ko-choji* is mixed into the *suguha*, with fine *ko-ashi* entering continuously; in others, *sunagashi* and *kinsuji* impart a Yamato-like feeling. The *shinogi* tends to be slightly higher than in other Rai works. Among his tanto, which are relatively numerous, some employ *kanmuri-otoshi-zukuri* construction -- a feature shared with Rai Kunitsugi and considered one of the distinctive characteristics of the Rai school.
The NBTHK has emphasized that Ryokai's characteristic traits are "well manifested in both *ji* and *ha*" in his finest works, and that ubu-nakago tachi by this maker are "exceedingly precious." His blades occupy a distinctive position within the Rai tradition: close enough to Kunitoshi's manner to affirm the lineage, yet sufficiently individual in the whitish cast of the *jihada* and the tight, *urumi*-tinged *nioiguchi* to constitute a recognizable personal idiom. His dated works, spanning more than two decades of the late Kamakura period, furnish indispensable reference material for the chronology of the Rai school, while the tradition attributing him to Kunitoshi's circle is consistently affirmed through the style of both *jihada* and *hamon* as well as the calligraphic form of his inscriptions.
Other smiths
Ieyoshi (家能) — Mainline · 1469-1487. Smith of the Yamashiro Rai School.
Kuninaga (國長) — Mainline · 1345-1350. Rai Kuninaga was a pupil of Rai Kunitoshi who left Kyoto and settled at Nakajima in Settsu Province, and from that move the line he founded took the name by which the published sources still call it, "Nakajima Rai" (中島来). Those sources count two generations under the single name Kuninaga, the first recorded in the Gentoku era at the very end of Kamakura and the second active in Nanbokucho around the Shohei and Oan years; the designated record gathered here is almost wholly that second-generation hand, working in the broad, large-pointed shape of the Enbun and Joji decades. His standing is fixed by a sentence the judges repeat across his blades: among the Rai group his work comes closest to Rai Kunimitsu, and at times to Rai Kunitsugu, yet yields a little to those masters in dignity and refinement. From that judgment follows the practical use of his name, for from old times, as the published sources put it, works that resemble Rai Kunimitsu yet are reckoned slightly inferior have been appraised as Kuninaga.
The hand that sentence describes is genuinely a Rai hand carried south and turned a touch more provincial. Over a packed itame or ko-itame that takes on a nagare, masame-leaning tendency near the edge, the jigane of the Kyoto parent, famous for being tight and bright, here stands up somewhat, the grain lifting into a visible surface that the published sources record again and again as hadatachi. Thick ji-nie gathers across it and fine chikei wind through, and on the broad mumei katana this standing, flowing steel carries a Soshu-leaning weight that is the first thing separating one of his blades from a true Kyoto Rai. The temper laid over it is a broad chu-suguha, but it does not stay the plain, quiet suguha of the orthodox Rai line. It breaks instead into ko-notare and ko-gunome, with ashi and yo running in and ko-nie settling along the habuchi, and through the body of the ha run sunagashi and, on the finest pieces, kinsuji and a faint yubashiri above the line.
That busier edge is the heart of his manner, and the judges single it out in the longest of his designations, where the abundant activity in and along the ha is said to give the whole working surface change and force. The nioiguchi, which the school as a whole tends to carry a shade sunk against the brighter Kyoto Rai, turns on his best mumei katana bright and clear, deep in nioi with the nie well applied. The boshi closes straight to a ko-maru and is frequently brushed with hakikake at the point; on the wide, large-kissaki late katana it runs up tsukiage into a yakizume tendency on the omote and points and turns back on the ura, a tip habit that follows the imposing Nanbokucho silhouette. Horimono are ordinary to the Rai inheritance, bo-hi carved through or run off as kaki-nagashi, sometimes with a companion groove, while the tanto take a plain suken with claws or a bonji with gomabashi beneath.
The corpus divides cleanly into two registers, and the division is itself a tool of attribution. The signed survivals are almost all tanto and small wakizashi, broad in the blade and a little sun-nobi with a thin kasane, carrying a three-character mei cut below the mekugi-ana on the sashi-omote, the chisel by turns fine and boldly thick. Signed tachi are extremely rare, and signed work of the first generation rarer still, so that the published sources note the second generation's signed pieces survive in comparatively greater number. The other register is the mumei o-suriage katana of the Enbun and Joji shape, wide in body with little taper, deep in curvature and ending in a large point, attributed to Kuninaga on the reading of the jigane and then confirmed by appraisal. Several of these carry a Hon'ami gold inscription, a kinpun-mei of Hon'ami Koson or a kinzogan-mei of the sixteenth-generation Hon'ami Mitsuhisa, and one wakizashi is accompanied by a Hon'ami Kochu origami of the Kyoho years; the published sources judge that such transmissions may be accepted, the forging and tempering conforming to the appraisal.
His place in the school is best taken from the way his blades are read against his relatives rather than from any claim of his own invention. A broad mumei katana of his can recall Rai Kunimitsu at first sight, and one of the later pieces is said even to call Rai Kunitsugu to mind, yet the standing nagare jigane, the somewhat sunk nioiguchi lifting only on his best work, and the overall level of the workmanship settle the attribution on Kuninaga. The distance is one of degree and not of kind: he keeps the Rai suguha, the Kyoto air and the bo-hi of the parent whole, and what he adds is the provincial, Soshu-leaning cast and the busier edge. The first generation is recorded keeping the orthodox Rai suguha, while the second made fewer pure suguha and many blades in midare-deki, and it is that more active second hand which the present blades document. The judges, weighing the broad ko-itame, the thick ji-nie and chikei and the well-entering ashi and yo, conclude that such a blade clearly manifests the characteristic traits of the Rai school.
Kuninaga is a Jo-jo saku smith of the Rai descent, and the connoisseurship of his work follows from his being a fine but residually attributed name rather than a celebrated one. Eleven of his blades stand on the designated record, all at the Juyo level and none raised to the higher tiers, so that there is no patrimony of his locked permanently into museum and shrine holdings. None of the designated blades carries a recorded daimyo provenance, and current ownership is largely unrecorded, so the honest account is that he is met not through a famous transmission but through the blades themselves: the broad mumei o-suriage katana with their Hon'ami gold attributions, and the signed tanto and small wakizashi in which his hand can be read directly. A collector encounters him as one of the more findable of the Rai-descended names, since his blades sit in the tradeable designation tiers rather than beyond reach, yet a signed example with its three-character mei intact is the rarer thing, the first generation's almost never seen. What such a blade offers is a precise and legible specimen of the Yamashiro Rai manner carried into Settsu and worked a degree busier, the best of which the judges have called a fine piece standing out even within the Kuninaga attribution.
Kuniyasu (國安) — Mainline · 1329-1331. Smith of the Yamashiro Rai School.
Kuniyasu (國安) — Mainline · 1329-1331. Smith of the Yamashiro Rai School.
Kunizane (國眞) — Mainline · 1334-1370. Rai Kunizane is one of the smaller names of the Rai school of Yamashiro, transmitted in the swordbooks as a son or pupil of Rai Kunitoshi, the younger brother of Rai Kunimitsu and the elder brother of Rai Tomokuni, working in Kyoto from the close of the Kamakura period into the Nanbokuchō. His record is almost entirely a question of two faces, and the published sources state the genealogy itself with caution: the *Meikan* gives him the Shōwa era and lists separately a smith of the same name placed before Kenmu, while the commentary observes that the received descent appears strained in both its workmanship and its chronology, so that a first and a second generation must be assumed from the works themselves. He is, in the end, less a single documented hand than the connoisseurship convention by which a particular kind of refined Rai work has been preserved.
The characteristic Kunizane that a collector meets is the *ō-suriage*, *mumei* katana attributed to him from old times, and it is read first in the *jihada*. Over a well-forged *itame*, at times a tightly packed *ko-itame* mixing in *mokume* and flowing *nagare*, the grain tends to stand a little, thick *ji-nie* adheres in fine grains, *chikei* enter frequently, and on the *ji* a faint *nie-utsuri* or pale *utsuri* often rises. The published sources call this a steel that resembles Rai Kunimitsu yet, in their own words, is “similar to Rai Kunimitsu though falling somewhat short of him” (来国光に似てやや及ばない), the standing grain and the quiet *nie-utsuri* marking the manner that carries the Rai *jigane* a step into the Nanbokuchō rather than holding to the bright, closely-packed Yamashiro *ji* of pure Rai.
Over that *jigane* he sets a *suguha*-toned line, broad or medium, into which *ko-chōji*, *ko-gunome* and a small *midare* enter. *Ashi* and *yō* work abundantly, *ko-nie* adheres well, the *habuchi* breaks into fine *hotsure* and at times a *nijūba* tendency, and *kinsuji* and *sunagashi* run through, the *nioiguchi* by turns tight and clearly bright. The *bōshi* runs straight to a small round, or enters *midare-komi* and sweeps with vigorous *hakikake*, on the more flamboyant pieces becoming pointed and flame-like. The decisive point of the attribution is one of degree, not of kind: the temper is the calm Rai register, but its *midare* appears in a smaller-patterned design than Kunimitsu's, and the published commentary turns that very observation into the rule, judging such a work to be “similar to Rai Kunimitsu though slightly lower in rank” and concluding that “within the group it is most appropriate to appraise it, as tradition has it, as the work of this smith” (一派の中では所伝通りに鑑することが最も妥当).
The other face is the signed work, and it is the rarer and more puzzling. Signed pieces are exceedingly few, chiefly *hira-zukuri* *wakizashi* and *tantō*, wide in *mihaba* and *sun-nobi* for their length, thin in *kasane* with a shallow *sori*, the typical Nanbokuchō shape, the three-character signature cut somewhat large below the *mekugi-ana*. Their forging is *itame* with *mokume*, flowing and slightly standing, with *ji-nie* well adhered, but their temper departs from the mainstream attribution: a *suguha* tone broken by *notare* and *ko-gunome*, the *nie* in places strongly thick, the edge running into *hotsure*, *uchi-noke*, a *kuichigai-ba* effect, *nijūba* and *yubashiri*. Several carry an “all-over” *hitatsura*-like temper that, in the published sources' phrase, shows “a burnt-looking manner approaching the workmanship of the Hasebe group” (皆焼風をおびて長谷部に近似した出来口). From this the commentary on the signed *tachi* and *wakizashi* concludes that “one is compelled to judge them works of the Nanbokuchō period” (南北朝の作と断定せざるを得ない), and it is this gap between the calm mumei attributions and the flamboyant signed pieces that sustains the standing question of a first and a second generation of the name.
What sets the Kunizane attribution apart from its neighbours is exactly what the judges name, and they take care to draw it from his own work rather than from the comparand. He stands within the Rai school beside Rai Kunimitsu and Rai Kunitsugu, carrying the Yamashiro manner forward; his is the refined Rai *suguha* read as a step below Kunimitsu in rank and smaller in the pattern of its *midare*, the faint *nie-utsuri* on a slightly standing *itame* his recurring tell. One signed katana with a Hon'ami gold-inlay breaks instead into a *chōji-midare* mixed with *gunome*, the undulations tightly clustered and *muneyaki* intermingled, which the commentary reads as the Rai tradition of Kunimitsu and Kunitsugu carried with a forceful spirit; the *hitatsura*-leaning pieces, with *tobiyaki* and *yubashiri* gathering toward the *monouchi*, are where it locates his individuality. The attribution is therefore a careful one, made by stylistic level and bearing within the school rather than by a single inimitable trait.
For the collector he is an accessible Rai name with a quietly distinguished provenance. Fujishiro grades him Jō saku. He has no National Treasures and no Important Cultural Properties; his record runs entirely through the Jūyō rank, twenty-five blades in the Jūyō tier, most of them *ō-suriage* mumei katana bearing gold-inlaid Hon'ami attributions, the published sources calling several of these especially superior among works attributed to him and sound in both *ji* and *ha*. Signed examples are the prize and the scarcity, so few that the commentary on one Jūyō *wakizashi* calls it “exceedingly valuable material for understanding the workmanship of this so rarely signed smith” (在銘稀有な同工の作風を知る上でも、大変貴重な資料). His blades carry good *nikuoki* and a documented descent through the daimyō houses, among them the Sakai of Maebashi and Himeji, one katana bestowed on Sakai Tadataka in 1745 as a gift marking the retirement of the eighth shogun Tokugawa Yoshimune and thereafter held by the family, with further pieces transmitted in the Nabeshima and Shimazu houses and examples now in the Ise Jingū Chōkokan, the Tokyo National Museum and the Tokyo Fuji Museum. Because all of his record sits in the tradeable tier, a Kunizane katana is not beyond reach in the way a Kunimitsu of the first rank would be; a signed piece, on the other hand, comes to light only seldom, a notable thing for a collector to encounter and a document of how the Rai school carried itself into the Nanbokuchō.
Noshin (能真) — Mainline · Early Muromachi. Smith of the Yamashiro Rai School.
Munenaga (宗長) — Mainline · 1394-1428. Smith of the Yamashiro Rai School.
Nobukane (信包) — Mainline · 1457-1460. Smith of the Yamashiro Rai School.
Kunisue (國末) — Mainline · 1352-1356. Smith of the Yamashiro Rai School.
Hisanobu (久信) — Mainline · 1304-1308. On a long-signed tachi dated Kagen 2 (1304) the smith cut his full name and personal title, Kuro-zaemon-no-jo Hisanobu, and that single inscription fixes much of what is known of him. Ryo Hisanobu, signing Ryo-Hisanobu, was the son of the founder of the Ryokai school of Yamashiro and the second generation of that line, working at the very end of the Kamakura period on the dated evidence of his surviving blades, the year-signatures Kagen, Tokuji and Engyo placing him almost level with his father at the turn of the fourteenth century. The Ryokai school stood among the recognized offshoots of the great Rai workshop of Kyoto, and the published sources describe Hisanobu as carrying his father's hand on with little change. He is rated Jo-jo saku in the reference texts, a high standing for so little-recorded a smith, and his work survives in a handful of designated blades, signed and attributed, by which his manner can be read.
His is the quiet Yamashiro suguha of the Ryokai line. Over a forging of itame or ko-itame that flows toward masame and stands a little open, the ji carries dust-fine ji-nie and the school's whitish shirake-utsuri, which on the slenderer blades rises in a straight band from the machi before spreading up the jigane. The temper is a calm chu- or hoso-suguha, or a suguha-cho mixing small ko-gunome with a few ko-choji and ko-midare, the nioiguchi tightening and clouding into urumi in places, with ko-ashi and yo entering, a faint fraying of hotsure along the habuchi and fine sunagashi, the boshi closing straight into a small ko-maru. The first Juyo tachi the published sources call an offering that well displays the characteristics of the Ryokai school, the phrase 「了戒一派の特色がよく表示された出来口」 standing as a fair summary of his hand.
The jigane is the foundation of the recognition. Across every one of his blades the whitish shirake-utsuri stands in the ji, the inherited Ryokai tell that separates the line from the Rai parent, in whose work it is essentially absent. The itame leans toward masame, the Yamato-ward drift of this Rai offshoot, so that the surface stands and flows where the packed Rai ji stays smooth, ji-nie clinging dust-fine and an occasional chikei running. In the ha the calm suguha shows minute work, ko-ashi and yo entering thickly on the best pieces, the nioiguchi clouding softly, an occasional tobiyaki or yubashiri drifting across, a little nijuba showing low on one kodachi. On his finest attributed tachi the published sources praise the abundant ashi and yo, the good nioiguchi and the finely worked ji together, judging it a particularly fine example among his attributed work with the words 「同工極め中にあって特に優品といえる」.
The small body of his designated work divides into two registers. The first is his rare signed survivals, ubu tachi and kodachi carrying a three-character Ryo-Hisanobu toward the mune above the mekugi-ana, and the one long-signed dated tachi giving the full personal name; one tachi is carved with bonji and suken on the omote and bonji and gomabashi on the ura, the late-Kamakura Kyoto manner. The published sources call the signed kodachi precious as one of the few in-mei works of this smith, ubu and well preserved, its hand recalling the father, 「作風は父了戒を想わせるような出来口」. The second register is mumei blades attributed to him on the same reading, one an ubu mumei tachi of well-made ko-itame, one an osuriage mumei katana slightly high in the shinogi. Signed work is described again and again as extremely few, which is why his year-signed and dated pieces carry such documentary weight, one of them called of very high reference value as one of the scarce in-mei works of this smith, 「数少ない同工の有銘の作として資料価値は頗る高い」.
The kantei is drawn against two near neighbours. The first is Rai Kunitoshi, the parent of the line, against whom the published sources resolve one of his mumei katana directly: the ko-gunome, hotsure and other changes at the ha-border of his fine suguha read a degree quieter and lonelier than Kunitoshi, the calm narrow line still showing minute activity, the verdict 「来国俊に比してやや蕭然たるもの」, with the boshi running straight into a settled ko-maru, so that the Hisanobu attribution is correctly affirmed. The masame and shirake more marked, the nioiguchi tighter and the whole calmer, these are the points that part him from Rai. The second neighbour is the father himself, from whom Hisanobu is separated less by any feature than by the signature, since signed work of the son is rarer still; a plain Hisanobu suguha is at a glance easily taken for the father's, and a soft Rai Kunitoshi for either of them. His single most consequential blade is the dated tachi that, by giving his personal name, established his zokumyo as Kuro-zaemon and through it showed that an earlier nationally designated tachi, once read as the father's sole work, is in fact a joint work of father Ryokai and son Hisanobu.
Hisanobu has no National Treasures and no Important Cultural Properties of his own, and none of his recorded blades is locked permanently out of private hands; his standing is that of a scarce but genuinely collectable name. Five of his blades are on the official designation record, all at the Juyo tier, and the published sources lean on his year-dated work and on outside documents to fix his place, the Tokuji 3 naginata in the Tokugawa Art Museum carrying the inscription 「了戒子息久信作」 that confirms him as Ryokai's son. No provenance owners are recorded for his designated blades, whose whereabouts of record run to private collections across several prefectures. A signed Hisanobu, ubu and with its mei intact, is among the scarcer things a collector of late-Kamakura Yamashiro work could hope to encounter, coming to light only from time to time and prized as documentary evidence as much as for itself; a mumei tachi or katana attributed to him appears a little more readily, and it is on these, with their shirake-utsuri and clouding suguha read against the quieter Rai line, that his hand is most often met. The published sources close on one such mumei blade as a calm fine suguha that yet shows minute work, 「静閑な細直刃ながらも微細な働きをみせる」, a deep and savoured offering, which is as fair a verdict on the smith as on the blade.
Kunihide (國秀) — Mainline · 1345-1350. Of the works that survive under the name of Rai Kunihide, almost all that carry a genuine signature are spears. The published sources count only two such signed yari and have seen no securely signed tachi, so that the smith is known in the main through greatly shortened, unsigned katana later appraised to him. He stands among the rarest of the Rai hands of Yamashiro, transmitted as the son or disciple of Rai Kunitsugu, said to have taken the appellation Rai Hikotaro (来彦太郎), and placed by the reference works around the Jowa era (貞和) of the Nanbokucho period. The picture is complicated by a second smith of the same name whom the meikan assign to the close of Nanbokucho around the Shitoku era (至徳), and by a Kamakura-period Kunihide of the Awataguchi line; clarifying his manner and dividing the first generation from the second are named in the published record as questions for future study. He is, in short, a documented but lightly attested late-Rai master, recognized more by the company he keeps than by his own surviving signatures.
His characteristic hand departs from the plain Rai suguha. Over the temper line he keeps a suguha base, but breaks it: gunome enter, with choji and, on the broader katana, ko-choji and the occasional togariba (尖り刃), the midare in places tightening into a complex small pattern. Long, thick ashi reach into the ha, yo are mixed in, the nioi runs deep and the nie attaches thick, sometimes coarsening to a rough nie-kobore, with kinsuji and sunagashi throughout and, along the habuchi of the largest blades, uchinoke (打のけ) and small yubashiri (湯走り). The nioiguchi stays bright and clear, and the boshi runs straight into a ko-maru, brushed with hakikake (掃きかけ) and turning back only slightly. It is a hand that holds the Rai brightness and the Rai steel while carrying more disturbance in the edge than the school's quiet straight temper, and that added midare is what most distinguishes his katana from an ordinary Rai blade.
The jigane is the Rai inheritance kept intact. He forges an itame, on the finest blades a ko-itame, that tends to flow and on occasion to stand a little (肌立ち), with mokume mixed in; over it the ji-nie adheres thickly in fine particles and the chikei (地景) enter, fine and frequent. On the signed spears the jigane leans further toward masame and nagare and carries a nie-utsuri (沸映り), a faint reflection standing in the steel. This is the Kyoto jigane of the Rai school carried into the wide, extended Nanbokucho body, and on the unsigned katana it is precisely the combination of that refined, nie-laden itame with the bright, busier ha that the judges read as Rai before narrowing the attribution to Kunihide. The work is sound in both ji and ha, and the published sources call the strongest of these blades a particularly superior example among those appraised to him.
His surviving record divides cleanly into two kinds of object. The first is the signed yari, hira-sankaku (平三角) in section with a conspicuously long kerakubi in the Nanbokucho manner, a broad groove cut on the flat, and a large three-character signature on the tang. On these the masame-leaning jigane carries the nie-utsuri, the suguha breaks into ko-gunome with hotsure along the habuchi, and the nioiguchi is bright; the published sources stress that genuine signed work runs almost entirely to these spears and that, with so few extant, the signature itself is the prize, observing that a Nanbokucho yari is in any case scarce, that 「南北朝期の槍はごく少ない」 and that works by this maker are themselves rare. The second kind is the greatly shortened unsigned katana, wide in the body with a chu-kissaki carried long, sometimes an o-kissaki, the period plain in the shape; these make up the larger part of the designated record. The one signed tachi stands apart from both: it bears a finely chiseled two-character signature, Kunihide, set toward the mune, which as the published sources note carries 「一般の来物のように「来」の字を冠していない」, and on the strength of its wide, extended form it is appraised to the Rai Kunihide rather than to the Awataguchi homonym.
Within the school he is placed just below his master, and the distinction is drawn with unusual precision. A wide unsigned katana of his calls Rai Kunitsugu to mind at first sight, the working range so close that the resemblance is the starting point of the appraisal; but on close examination it is judged that 「一見、来国次を想わせるものがあるが、総体に格調の点で聡かそれに譲るところがあり」, and on that small remove in dignity (格調) the blade settles to Kunihide of the same lineage. His own affirmed traits carry the contrast: the suguha base broken by gunome (互の目) and choji (丁子), the bright nioiguchi, the hakikake boshi and the nie-laden itame are what set his katana apart, not any single missing feature, and the traditional attribution is found convincing on those positive terms. Reading the other way, because his securely signed work is almost all yari and no certain signed tachi survives, a plain Rai straight temper can in turn be mistaken for his, which is why the wide Nanbokucho sugata and the added midare matter so much to the judgment.
For a collector the arithmetic is stark and is best stated plainly. The whole of his designated record on the official rolls amounts to seven blades, all at the level of Juyo, with none yet raised to the Tokubetsu Juyo tier and none on the higher rolls of designated cultural property; he is rare rather than canonical, a connoisseur's name rather than a museum's. None of the seven carries a recorded line of provenance, so there is no daimyo roll to recite, and the genuine signed survivals, the two yari, are documentary anchors more than things likely to circulate. What a patient collector might realistically encounter is one of the shortened unsigned katana appraised to him, and even those come forward only rarely, a Rai attribution of real interest when one does. The published sources, noting that 「在銘の現存するものが少なく」 and that the division of the generations remains unsettled, make the point themselves: this is a Rai master glimpsed at the edge of the record, his hand surer than his biography, and an example bearing his name is among the quieter rewards of attention to the late Yamashiro tradition.
Kunimune (國宗) — Mainline · 1319-1321. Smith of the Yamashiro Rai School.
Kuninaga (國長) — Mainline · 1331-1336. Smith of the Yamashiro Rai School.
Kunitake (國武) — Mainline · 1319-1321. Smith of the Yamashiro Rai School.
Mitsushige (光重) — Mainline · 1331-1360. Smith of the Yamashiro Rai School.
Naga (長) — Mainline · 1362-1368. Smith of the Yamashiro Rai School.
Tomokuni (倫國) — Mainline · 1334-1370. Rai Tomokuni is handed down as the son of Rai Kunitoshi and, on one account, the younger brother of Rai Kunizane, which sets him within the second great generation of the Yamashiro Rai school and makes him a near kinsman of Rai Kunimitsu. He is a minor master of that house, and the chief fact of his record is its scarcity. The published sources report no tachi under his name, only a handful of short tanto and small wakizashi, and even those are few, so that almost the whole of his designated body is mumei carried to him by old appraisal. From what survives the sources read two Tomokuni, an earlier hand in the circle of Kunitoshi and a second working in the Nanbokuchō period to whom most existing blades are assigned, and they ask whether that second smith is the Tomokuni recorded under the Bunna era of the old sword registers, leaving the question open to further study. He is thus less a documented individual than a name read off a small group of late Rai blades, and the interest of those blades lies in how they part from the rest of the school.
That parting is stated plainly. The published sources say his work differs somewhat from Kunitoshi (来国俊とはやや作風を異にして), the mihaba broad, the kitae a ko-itame standing stronger than is usual among the school's makers, and the temper a notare-toned midareba in place of the calm suguha that is the Rai hallmark. Every one of his blades carries that notare base mixed with gunome, here and there small gunome, deep in nioi with the nie well applied, and into the habuchi run ashi and yo, kinsuji and sunagashi, with drifting yubashiri and detached tobiyaki, and muneyaki burning along the back. The nioiguchi is bright. The shape fixes the period at a glance, a wide, thin, sun-nobi hira-zukuri of shallow sori that the texts read at once as Nanbokuchō work, with the one o-suriage piece cut down to a wakizashi. His is a worked, nie-laden ha set on a Rai jigane, and that combination, more than any single feature, is what a Tomokuni blade looks like.
The jigane beneath the temper is what keeps the name. The kitae is an itame, on the finest tanto a ko-itame closely packed, with ji-nie adhering well and on one blade thick, chikei entering and a faint nie-utsuri standing on two of them. The steel neither whitens nor sinks as a northern jigane would; it holds the clear, nie-covered surface of Yamashiro work, and the published sources read the school in it directly. The boshi answers the disturbed ha, running in as a midare-komi or, on the broadest blade, sweeping straight with hakikake and pointing faintly before a long return, while the small ko-maru turns close the quieter pieces. The horimono keep the school habit, with gomabashi and a suken, koshi-bi and soe-hi, twin grooves and a katana-hi cut on these small blades. On each blade the judgment closes in the same terms, that the shape shows the Nanbokuchō period and the ji and ha show the Rai school, so that on one wakizashi the sources find the school's traits present and the Tomokuni attribution sound (来一派の特色があり、来倫国の所伝はよい).
The rarity of his signed work is the spine of the scholarship. Because so little is signed, the published sources build the second-generation reading on style rather than on inscriptions, and the argument turns on the same departures that mark his hand. On one tanto they observe that the wide mihaba, the ko-itame jigane unusually strong for the school, and the notare-toned midare carry a strain that connects to Nobukuni (一脈信国に通じるものがある), and reason from exactly this difference that a distinct second generation may stand behind the name, perhaps the Bunna-era Tomokuni of the registers. The form keeps to the small end of the koto range. The two signed pieces and four mumei among the Juyo blades are short tanto and wakizashi, never the tachi the older Rai masters are known by, and the one signed example wears a shu-mei rather than a chiselled signature. He is, in short, a smith reconstructed by appraisal, the most exactly knowable thing about him being the manner itself.
That manner places him at the school's Nanbokuchō edge, where the Rai line opens toward the Sōshū-influenced styles of the day, and his brother stands at the same edge. On the broadest blade the published sources turn to Rai Kunizane, handed down as Kunitoshi's pupil or as his son and Tomokuni's elder brother, and note that some of Kunizane's signed work takes on a hitatsura cast and comes near to Hasebe (皆焼風をおびて長谷部に近似した出来口のもの). Tomokuni's own departure runs the same direction without going so far, his stronger hada and his notare midare reaching toward Nobukuni while the Rai ji holds him to Kyoto. What sets him apart within his own house is therefore positive and grounded in his blades: a kitae that stands where the school's lies flat, a midare where the school keeps suguha, and a nie-deki activity of kinsuji, sunagashi, tobiyaki and muneyaki richer than the quiet Rai temper. It is by these, not by any borrowed Soshu resemblance, that a wide Nanbokuchō blade is returned to Tomokuni rather than read past him.
Almost the whole of his record is mumei attributed to him by old appraisal, and his connoisseurship standing reflects a sound but modest hand, rated Jo-saku with a Toko Taikan valuation in the middle range. A small group of his blades has reached the Juyo rank, and beyond them a scatter of works survives only in the research record, two of them held by the Tokyo National Museum and the Kurokawa Research Institute while the rest stay in private hands, with no daimyo provenance preserved among them. The published sources single out the best of the Juyo pieces for the soundness of both ji and ha, calling the broadest wakizashi an elegantly finished sword without flaw in ji or ha (地刃共に破綻のない上品にまとまった優刀である). A Tomokuni is not a National Treasure held forever beyond reach, but neither is it a sword that comes readily to market. The surviving body is small, most of it is held rather than traded, and a signed example is rarer still, so that a private blade by this name is among the less common things a collector of the Rai school could expect to encounter, met with patience rather than sought to order. For a student of how the Yamashiro line bent toward the new Nanbokuchō manner without leaving its own ji behind, his few wide, nie-laden blades are the place where that turn can actually be seen.
Arimitsu (有光) — Mainline · 1368-1375. Smith of the Yamashiro Rai School.
Hakusan (白山) — Mainline · 1387-1389. Smith of the Yamashiro Rai School.
Haruyuki (春行) — Mainline · 1394-1428. Smith of the Yamashiro Rai School.
Hidetsugu (秀次) — Mainline · 1334-1338. Smith of the Yamashiro Rai School.
Hisakuni (久國) — Mainline · 1319-1321. Smith of the Yamashiro Rai School.
Ieyoshi (家能) — Mainline · 1394-1428. Smith of the Yamashiro Rai School.
Kunihide (國秀) — Mainline · 1332-1334. Smith of the Yamashiro Rai School.
Kunihisa (國久) — Mainline · 1332-1334. Smith of the Yamashiro Rai School.
Kunitsugu (國次) — Mainline · 1312-1317. Smith of the Yamashiro Rai School.
Mitsusada (光定) — Mainline · 1387-1389. Smith of the Yamashiro Rai School.
Munemitsu (宗光) — Mainline · 1338-1342. Smith of the Yamashiro Rai School.
Muneto (宗遠) — Mainline · 1329-1331. Smith of the Yamashiro Rai School.
Muneyoshi (宗能) — Mainline · 1469-1487. Smith of the Yamashiro Rai School.
Naoyoshi (直能) — Mainline · 1504-1521. Smith of the Yamashiro Rai School.
Naoyoshi (直能) — Mainline · 1429-1441. Smith of the Yamashiro Rai School.
Naoyoshi (直能) — Mainline · 1532-1555. Smith of the Yamashiro Rai School.
Nobumasa (信正) — Mainline · 1345-1350. Smith of the Yamashiro Rai School.
Nobumasa (信正) — Mainline · 1390-1394. Smith of the Yamashiro Rai School.
Nobumasa (信正) — Mainline · 1492-1501. Smith of the Yamashiro Rai School.
Nobuyoshi (宣能) — Mainline · 1444-1449. Smith of the Yamashiro Rai School.
Nobuyuki (信行) — Mainline · 1394-1428. Smith of the Yamashiro Rai School.
Norikane (則兼) — Mainline · 1368-1375. Smith of the Yamashiro Rai School.
Norinaga (則永) — Mainline · 1299-1302. Smith of the Yamashiro Rai School.
Noriyoshi (徳能) — Mainline · 1429-1441. Smith of the Yamashiro Rai School.
Noriyoshi (徳能) — Mainline · 1492-1501. Smith of the Yamashiro Rai School.
Sadayoshi (定能) — Mainline · 1469-1487. Smith of the Yamashiro Rai School.
Sadayuki (定行) — Mainline · 1429-1441. Smith of the Yamashiro Rai School.
Shigeyoshi (重能) — Mainline · 1457-1460. Smith of the Yamashiro Rai School.
Tomotsuna (友綱) — Mainline · 1368-1375. Smith of the Yamashiro Rai School.
Tomotsuna (友綱) — Mainline · 1394-1428. Smith of the Yamashiro Rai School.
Tsuneyoshi (恒能) — Mainline · 1469-1487. Smith of the Yamashiro Rai School.
Yasumitsu (安光) — Mainline · 1441-1444. Smith of the Yamashiro Rai School.
Yoshisada (能定) — Mainline · 1394-1428. Smith of the Yamashiro Rai School.
Yoshisada (能定) — Mainline · 1444-1449. Smith of the Yamashiro Rai School.
Yoshitoshi (能世) — Mainline · 1469-1487. Smith of the Yamashiro Rai School.
Yoshitsugu (吉次) — Mainline · 1469-1487. Smith of the Yamashiro Rai School.
Yoshitsugu (能次) — Mainline · 1429-1441. Smith of the Yamashiro Rai School.
Yoshitsugu (能次) — Mainline · 1469-1487. Smith of the Yamashiro Rai School.
Yoshitsugu (能次) — Mainline · 1492-1501. Smith of the Yamashiro Rai School.
Yoshitsugu (能次) — Mainline · 1521-1528. Smith of the Yamashiro Rai School.
Yoshiyuki (吉行) — Mainline · 1381-1384. Smith of the Yamashiro Rai School.
Yoshizane (能眞) — Mainline · 1338-1342. Smith of the Yamashiro Rai School.
Yoshizane (能眞) — Mainline · 1429-1441. Smith of the Yamashiro Rai School.
Yoshizane (能眞) — Mainline · 1469-1487. Smith of the Yamashiro Rai School.
Yoshizane (能眞) — Mainline · 1521-1528. Smith of the Yamashiro Rai School.
Yukihide (行秀) — Mainline · 1394-1428. Smith of the Yamashiro Rai School.
Yukimune (行宗) — Mainline · 1469-1487. Smith of the Yamashiro Rai School.