NihontoWatch水心子正秀(すいしんし まさひで)は寛延三年に米沢の北方二十七キロの諏訪原という小村に生まれ、明和八年二十二歳の時に武州下原吉英に師事している。安永三年には職方の振興に熱心な山形城主秋元永朝に召し抱えられ、江戸表と国元を往還して技術錬磨に努め、備前一文字の秘術を伝える石堂是一や正宗末裔山村綱廣にも教えを請い、日本刀古来の鍛法の復元と実践に努めた。その研究結果を著して広く公開し、大慶直胤や細川正義、陸奥介弘元など名立たる優工を育て、日本刀史に大きな足跡を遺した。 この脇差は大小一腰の小刀とみられ、作意は南北朝期の備中青江。身幅重ねともに安定感のある造り込みで、中鋒がやや延びた洗練味のある姿。柾気を交じえた小杢目鍛えの地鉄は地沸が微塵に付いて潤い、微かに肌起って縮緬状となり、また処々に澄肌風の鉄を交えて青江を想起させる晴れやかな鉄色。直刃調の刃文は純白の小沸で刃縁やや締まって明るく、立ち込めた匂で刃中は澄み、光を反射して冴え、無数に入った小足が青江の鼠足を、突き上げごころに小丸に返る帽子も所謂青江帽子を想わせる。茎の保存状態は完璧で、正秀らしく丁寧な仕立て。秋元(注)侯の命による作であろうか、銘字は「川部藤原正秀」と、任官受領銘を入れない実名のみ簡潔かつ神妙に刻され、また原の小が草書風となり、八月十三日の期日紀も珍しい。五十歳を迎えた正秀の熟練の技が発揮され、直刃の妙というべき美観が示された同作脇差中の傑作である。 注...群馬県初年度登録は上野国館林藩に転じた秋元家との関わりを窺わせるに充分である。
NihontoWatchSuishinshi Masahide School水心子正秀派
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Shinshinto · Musashi
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At Hamachō in Edo, in the closing decades of the eighteenth century and the opening ones of the nineteenth, Suishinshi Masahide[[c:1]] gathered the school that would turn Japanese swordmaking back toward its medieval models. Born Kawabe Gihachirō at Akayu in Dewa in 1750, signing first as Suzuki Takahide and then Eikoku, he studied under the Shitahara smith Yoshihide of Musashi, took the name Masahide in An'ei 3, and served the Akimoto house of Yamagata before settling in Edo, where he worked for nearly fifty years. He is the founding figure of the shinshintō and the theorist of the fukko-tō (revival-sword) doctrine, the argument that the sword ought to return to its Kamakura forms. Around that teaching he drew a large body of pupils, among them Taikei Naotane, who would give the revival its fullest practical form, the future second Masayoshi (Hosokawa Morihide), and a wider Edo and provincial following that carried the program into the Mito, Yonezawa, Tsuyama, and Tatebayashi domains. The shared vocabulary of the school is the deliberate reach back into the koto traditions, worked over a tightly forged, often muji-toned ko-itame with thick ji-nie. Masahide's own prime hand was the Ōsaka-utsushi, the surging tōran-midare of Tsuda Sukehiro opening from a long yakidashi and the broad suguha after Inoue Shinkai, betrayed on even his closest copies by a blackish, coarse nie that spills from the ha into the ji. Naotane gave the revival its Bizen and Sōshū faces: a reverse-leaning chōji-midare with angular kaku-gunome and saka-ashi, modeled on the late-Kamakura Osafune masters Kagemitsu and Kanemitsu and anchored by a consciously revived midare-utsuri that no ordinary shinshintō steel carries, set beside a Sōshū notare with its whorled uzumaki-hada and coarse, striped nie. The pupils divided this inheritance along their own lines. Jirōtarō Naokatsu, Naotane's adopted son, took a Bizen-den led by a kataochi-gunome from Kanemitsu with a pervasive saka-gakari slant and chōji- or midare-utsuri in the ji.
Suishinshi Masatsugu reproduced Naotane's two traditions, Sōshū and Bizen, down to the cut of his signature. Through Masayoshi the Bizen current passed to his heir Hosokawa Masamori of Tsuyama, whose chōji clusters mixed with gunome-chōji and togariba. The Osaka wave traveled separately into Mito through Naoe Sukemasa, who set a Shinkai-styled suguha and a Sukehiro tōran over a clear ko-itame, while Chōunsai Tsunatoshi of the Uesugi service carried a nioi-deki chōji mixed with gunome, suguha, and tōran-midare, often with carving by his own hand. To kantei the school is to weigh a tradition consciously copied against the period marks the copy cannot shed: the constant of the line is that the hamon is never the pure nioi-deki of old Bizen but carries nie throughout, a difference the NBTHK names outright as the divide between koto and shinshintō. The revived utsuri in Naotane and Naokatsu, the spilling nie in Masahide, the whorled uzumaki-hada shared across the line, and the broad, thick-kasane late-Edo sugata are the surest tells, narrowed further by the school's habit of full, dated signatures that make these smiths among the most exactly knowable of their age. Masahide stands at the head as the teacher and theorist, his finest work in his Ōsaka copies rather than the doctrine he proclaimed; Naotane stands ahead of him in execution, his Bizen-den held the finest among the shinshintō. Their pupils define the late-Edo Osafune and Sōshū revivals as practiced through Edo and the domains, with Naokatsu and Masatsugu read as the next hands after Naotane and Masayoshi. The provenance of the school runs through domain commission and bestowal (Mito blades forged at the Kōrakuen by lordly order, Tsuyama and Yonezawa fief work, Naotane's Sanada daishō and a tachi recorded in Honma's inventory of the Imperial collection) rather than ancient daimyō transmission, fitting for a movement that, within a single generation at Edo, redrew the direction of nineteenth-century swordmaking by turning it back toward the old models. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Naotane直胤 | 1801-1837 | 40 |
| Masahide正秀 | 1777-1817 | 28 |
| Sukemasa助政 | 1804-1825 | 8 |
| Jirotaro Naokatsu直勝 | 1805-1858 | 7 |
| Masayoshi正義 | 1791-1860 | 5 |
The Shinshintō revival
Around 1800 Suishinshi Masahide argued in his writings that the craft must return to the old masters’ methods: the fukkotō revival. His greatest successor Naotane worked convincingly in Bizen and Sōshū manners that had been dead for centuries.
Certifies a genuine blade worth preserving: a signature confirmed correct, or, if unsigned, an era, province, and school that the NBTHK can reliably identify.
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.
NBTHK official siteIf, due to our fault, the item differs significantly from its proper condition, the item may be returned. Cooling-off is within one week of the item's arrival.