Mino was founded, tradition holds, by immigrants: Kaneuji of the Yamato Tegai line settled at Shizu to work in the new Sōshū manner, so persuasively that later appraisers judged his best blades the closest of any to Masamune.
NihontoWatchNihontoWatch南北朝時代、美濃伝の開祖、兼氏に極められた作品。 本作は大磨上無銘の刀で、志津と鑑せられている。志津とは元来は美濃の地名であるが、この地に大和より正宗の門人兼氏が来住して鍛刀したことから、地名を取って志津三郎兼氏と呼称しており、兼氏の別称となっている。兼氏は正宗十哲と称される刀工の中では最も正宗に近似の作域を示していることで知られる名工である。 本作は無銘ながら身幅尋常で、重ねが薄く、ふくらのふっくらとした南北朝初期の体配を示し、刃文、総体に小沸出来ののたれ刃に、金筋砂流しをよく走らせ、二重、三重に輝く沸が煌めいて沸の叢消えを呈し、物打ちで大互の目、飛び焼きを焼いて先は地蔵帽子に返るなど古来刀剣書が同作の作風として示す典型的作風を顕示している。地鉄は小板目肌に細かな地景を良く交え、地沸厚くつき、潤いに満ちている様は健全な作ゆえの見どころである。現存する志津極めの作は多くが刀の極め物であり、短刀の同作極めは頗る貴重であるが、本作はその中でも在銘作に連なる兼氏の教科書的作風を示した大変貴重な作品である。藩政時代は貞宗とされていたものが近年の鑑定で志津に極められたもので、古来刀剣界には「古極めを弄るな」との格言が存在するが、総体にすこぶる上品に纏められた本作においてはむしろ本鑑定に筆者も同意である。日向正宗などの世に僅かに存在する名物短刀に比肩する優れた出来口と健全さを誇る優品である。
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Mino-den · Mino
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The Shizu tradition originated in Mino Province during the late Kamakura period when Kaneuji—originally of the Yamato Tegai school—relocated from his studies under Masamune of Sagami to the village of Shizu in Tagai District. Taking the place-name as his appellation, he became known as Shizu Saburō Kaneuji, and established a lineage that would become one of the most celebrated branches among the so-called Masamune Jittetsu (Ten Great Disciples of Masamune). While Kaneuji himself is often considered the paramount master of this group, the designation "Shizu" came to be applied broadly to unsigned works displaying the characteristic manner of this school, encompassing not only Kaneuji but also his contemporaries and successors working within the same stylistic orbit. A related category, Yamato Shizu, refers either to Kaneuji's early production before settling in Mino—when his work retained stronger Yamato Tegai characteristics—or to smiths of the Kanetsugu lineage who remained in Yamato rather than migrating to Mino. The collective hallmarks of Shizu workmanship reveal a distinctive synthesis of Sōshū-den brilliance and Yamato structural sensibilities. The forging typically displays flowing itame-hada mixed with mokume, frequently tending toward hada-dachi (standing grain), with areas where masame inclinations appear along the edge. A defining feature is the dense application of fine ji-nie, often described as thickly adhering, accompanied by abundant chikei that enter repeatedly to produce a notably clear and bright appearance. The hamon favors shallow notare as a foundation, mixed with gunome, ko-gunome, and pointed elements (togariba), forming compositions that range from gentle undulations to boldly disturbed patterns.
The temper is richly nie-based, with vigorous sunagashi streaming through the pattern, frequent kinsuji, and in many examples a temper built on notare (notare-ba). Characteristic activities include hotsure along the habuchi, occasional nijūba (double-temper) effects that recall Yamato influence, and in some works the presence of linked gunome sequences. The bōshi commonly enters in midare-komi or notare-komi, turning back with pointed or rounded forms, and frequently displays hakikake at the tip. Among the upper tier of Sōshū-den productions, works attributed to the Shizu lineage are particularly valued for the way their gleaming ha-nie activities create patterns that are both vigorous and refined. The thick ji-nie and prominent chikei in the forging, combined with the bright, clear nioiguchi in the temper, result in blades that are described as saeru—possessing a luminous clarity that distinguishes superior examples. While the style stands closest to Masamune among his disciples, the Shizu manner retains its own individuality: the blending of Yamato characteristics into the Sōshū tradition produces a distinctive temperament in both ji and ha that connoisseurs recognize at a glance. Many extant examples survive only as greatly shortened (ō-suriage) and unsigned (mumei) blades, yet the workmanship in such pieces typically remains sound and well-preserved (kenzen), testifying to the fundamental excellence of forging and tempering that defines this celebrated school. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Kaneuji兼氏 | 1319-1321 | 161 |
| Naoshizu直鎭 | 1532-1555 | 0 |
Mino in the Nanbokuchō period
Mino was founded, tradition holds, by immigrants: Kaneuji of the Yamato Tegai line settled at Shizu to work in the new Sōshū manner, so persuasively that later appraisers judged his best blades the closest of any to Masamune.
A Hozon-certified blade judged to show notably superior workmanship and a better state of preservation. The bar is higher: re-tempered blades and most unsigned Muromachi/Edo works are excluded.
The NBTHK (Nihon Bijutsu Tōken Hozon Kyōkai, the Society for the Preservation of Japanese Art Swords) is a public-interest incorporated foundation founded in 1948 and supervised by Japan’s Agency for Cultural Affairs (Bunkachō); it is based at the Japanese Sword Museum in Tokyo. Its expert panels physically examine each submitted work (shinsa) and issue a certificate (kanteishō) ranking it by artistic and historical merit. NBTHK papers are the most widely recognized standard of authentication for Japanese swords and fittings.
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