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About the school

Sukesada School祐定派

Sukesada (祐定) is the great name of late-Muromachi Osafune, the most prosperous of the Bizen forges that scholars group together as Sue-Bizen. The signature was carried by a body of smiths so large that the early-modern reference Hayami-dashi lists as many as twenty-one who appended a *zokumyo* (common name) to distinguish themselves, and the published commentary is blunt that of all the late-Osafune families the Sukesada line was the largest and most productive. Two registers of work issue from this single name. At the top stand the masters identified by their common-name titles, Yosozaemon-no-jo, Hikobei-no-jo, Genbei-no-jo, and Hikozaemon-no-jo, whose custom commissions (*chumon-uchi*) the sources distinguish sharply from the mass run; beneath them lies the great body of *kazu-uchi-mono*, the bulk production signed plainly Sukesada with no personal name, dated and placed to the house by era and quality. Hikobei-no-jo is recorded as the father of Yosozaemon-no-jo, who in turn heads the most distinguished branch, born in Onin 1 by back-count from a *tanto* inscribed at age seventy-one in Tenbun 6; the name then runs in same-signature generations down through the Eiroku and Tensho years. The shared vocabulary of the school is the temper the late Bizen workshops made their own. Over a *jigane* of tightly packed *ko-itame*, fine *ji-nie* settling like dust, *chikei* woven through, and a faint *midare-utsuri* rising near the *shinogi* (the thinned last trace of the bright reflection that filled the Osafune prime), the smiths build an open-waisted *koshi-biraki gunome* that develops into the doubled, compound *fukushiki* structure marking a Sue-Bizen blade above all else. Mixed into it run *choji*, *ko-gunome*, and pointed *togariba*, in places gathering into the double-flower *juka* and the crab's-claw formation called *kani-no-tsume*; the *hamon* is *nioi*-based with *ko-nie* adhering, *ashi* and *yo* entering richly, *kinsuji* and *sunagashi* trailing, the *nioiguchi* bright and clear. A second pole answers this flamboyance, the quiet *hiro-suguha*, broad and shallowly undulating with *ko-gunome* folded in, of which Genbei-no-jo in particular was the master, while a livelier *hitatsura* climbs the body with frequent *tobiyaki* and *muneyaki* on certain *tanto*, often in *moroha-zukuri*. The blades take the robust late-Muromachi *uchigatana* form, wide in body with little taper, thick in *kasane*, deep in *sori* with *sakizori* and an extended *chu-kissaki*. The divergence between the masters and the general production is one of care rather than kind: Yosozaemon's bright, well-packed *ko-itame* and his command of all three registers, *gunome*, *suguha*, and *hitatsura*, set his typical work apart from the coarser bulk, and the commentary states plainly that it is precisely because such *chumon-uchi* exist that the Sue-Bizen name carries its high standing. To *kantei* a Sukesada blade is first to read the signature register, then the manner. A named master signs a long *mei* on the *omote* with the date on the *ura*, often over two columns and frequently with carving (*bo-hi*, a Kurikara dragon, a *bonji*, or the invocation Namu Hachiman Daibosatsu); the bulk *kazu-uchi-mono* sign Sukesada alone and are judged to the house by era and the *Bizen-den* keynote of *koshi-biraki gunome* on bright *ko-itame*. Yosozaemon-no-jo leads the name in renown and breadth, ranked beside the late-Osafune Kiyomitsu among the two great hands of the workshop's closing age, his blades transmitted in daimyo houses grounded in their own provenance, the Hachisuka, the Mori, and the Ii, with a *wakizashi* recorded to the warrior Yamanaka Shikanosuke and others in the Imperial collection. Genbei-no-jo and Hikobei-no-jo follow, their custom blades often carrying an owner inscription beside the date, and Hikozaemon-no-jo offers the approachable end of a famous name. The Sukesada cutting reputation runs through the whole body, the heavy *sakizori uchigatana* made to be worn and used two-handed as the *tachi* fell from use. For the collector this is the most attainable of the great Bizen names, never common at its summit yet, in a signed and dated example with the open-waisted *gunome* reading clearly down its edge, the surest single document of how Osafune worked in its last great generation.

Katana Yamadaiya

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