Edo was the sword’s age of connoisseurship: the Hon’ami appraisers, the shogunal register of famous blades of 1719, and a thriving literature turned the sword into an object of study even as it ceased to be drawn in war.
NihontoWatchNihontoWatchAntique Japanese Wakizashi, signed Uta no Kunitsugu — NBTHK Hozon Tōken Etchū Uta school · Early Edo period (Shintō), c. Kan'ei–Kanbun era Accompanied by an NBTHK Hozon Tōken ("Sword Worthy of Preservation") certificate. This large wakizashi bears the signature Uta no Kunitsugu (宇多之国次) and is accompanied by an NBTHK Hozon Tōken certificate, which papers it as a genuine work of the Uta school of Etchū province dating to the Shintō ("new sword") era — the certificate itself notes the "Shintō" classification, placing this blade in the early Edo period, around the Kan'ei to Kanbun eras (mid-17th century). The Uta school of Etchū The Uta school traces to a smith remembered as Ko-nyūdō Kunimitsu, who in the late Kamakura period moved from Uda district in Yamato province to Etchū (present-day Toyama), settling at Gousho Mikkaichi. He signed Uta to record his home district, and the name passed to the school he founded. From the Nanbokuchō period through the Muromachi era and on into the early Edo period, generations of Uta smiths — Kunifusa, Kunimune, Kunitsugu and others — worked in Etchū, making the school one of the great enduring swordmaking lineages of the northern provinces. The name Kunitsugu itself was carried by several smiths across these generations; this blade belongs to the school's Shintō-era work. Workmanship and condition An impressive wakizashi of full length, in shinogi-zukuri with a well-proportioned form and elegant curvature. The jigane is a well-forged itame grain in which chikei — dark, glittering lines of activity in the steel — appear throughout, together with yubashiri , "running" patches of bright hardening that drift across the surface. It is a rich, active ground in the finest tradition of the Uta school. The hamon is the highlight of the blade: a highly individual midare temper that calls to mind the swell of great rolling waves — broad, surging undulations breaking along the edge — with a nioiguchi that is bright and tightly knit. Within the h
Certificate reading — 銘 宇多之国次
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Among the provincial lineages that carried the Yamato-den northward, the Uda school (宇多) of Etchu province holds a distinct place. Its origin lies in the late Kamakura period, when the monk-smith Kunimitsu, remembered as Ko-Nyudo Kunimitsu, migrated from Uda District in Yamato to Etchu around the close of the era. From this founder descended a long line of Kuni-named smiths; the reference registers carry Kunifusa and Kunimune as sons of the founder, Kunitsugu and Kunihisa among the generations that followed, the studio names recurring through the Oei, Hotoku, Bunmei and Tenbun eras down to the end of Muromachi and on into shinto times. The school worked the tanto (broad for its length, with little curvature) more readily than the tachi or uchigatana, and because its smiths individuate little, a signed Uda blade is read less as one hand than as the manner of its period. The school is identified first off the steel rather than the temper. The shared forging is an itame that runs and tends to stand, flowing toward masame and mixing mokume, with standing o-hada and ji-nie throughout; the steel turns whitish and at times blackish, so that a shirake-utsuri or faint bo-utsuri stands in the ji. Over this northern jigane the temper ranges from a chu-suguha opening shallowly into ko-notare and ko-midare to a vigorous gunome carrying pointed elements, ashi and yo entering, ko-nie well adhered along a tight nioiguchi. The Yamato activity of hotsure and kuichigai-ba names the old province along the habuchi, while kinsuji and sunagashi run through nearly every surviving blade.
From this base the corpus divides: a quieter Yamato-rooted suguha face, seen on the tanto; a Soshu-leaning midare face traced to Kunifusa's study under Etchu Norishige, in which the nie thickens and grows at times coarse with yubashiri and broadened yakihaba; and a refined register in which a compacted ko-itame gathers abundant ji-nie and a round, luminous nie scatters through the yakiba. Ko-Uda, the earlier work of the Nanbokucho and early Muromachi generations, reads cleaner and closer to its Yamato and Soshu models; the later Uda hands run coarser and more provincial in character. To kantei an Uda blade is to find its Yamato roots wearing a coarser northern character. The whitish, standing jigane with its masame tendency and shirake-utsuri returns the blade to the school when the temper alone might recall a Yamashiro or Soshu hand; a nie-laden example reads as Soshu at first glance and is brought home by the dark, standing steel and the nioiguchi that holds rather than glows. The best members close the distance to their models: Kunihisa, the Oei-era hand the published sources read against the founder, forged a ko-itame bright enough that the judges found his finest wakizashi and tanto all but mistakable for Rai Kunimitsu or Kunitsugu, while his standing itame and shirake-utsuri keep him within Uda. Kunimune and Kunitsugu carry the same two faces over the one northern steel, the dated and signed pieces (a Bunmei 11 katana, a Bunmei 17 yari) valued as research material for the school as much as for their make. Signed Uda blades are uncommon, so the school's standing rests heavily on mumei attributions read by jigane and temper. Provenance tends toward long, settled holding, with designated work resting in shrines and museums, and some recorded in Honma's inventory of the Imperial collection, rather than circulating, so that a signed Uda piece comes to a private collector only from time to time and with patience, a clear window onto how the Yamato tradition was carried into the northern provinces. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Kunihisa國久 | 1394-1428 | 10 |
| Kunimune國宗 | 1429-1479 | 5 |
| Kunifusa國房 | 1455-1457 | 3 |
| Tomotsugu友次 | 1381-1384 | 3 |
| Kunitsugu國次 | 1469-1487 | 3 |
The Edo period (1615 to 1868)
Edo was the sword’s age of connoisseurship: the Hon’ami appraisers, the shogunal register of famous blades of 1719, and a thriving literature turned the sword into an object of study even as it ceased to be drawn in war.
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 siteAs a general rule, returns/exchanges are not accepted on Japanese sword orders unless damaged upon delivery. Other items: returns/exchanges accepted within 7 days of delivery. Cancellation for personal reasons incurs a 30% restocking fee (70% refunded). Return shipping must be prepaid and insured by the buyer; shipping/handling fees are non-refundable. Contact katana@tozando.co.jp to initiate a return.