This rectangular iron tsuba, attributed to the Kumagaya school of the Edo period, features an elegant design of paulownia flowers surrounded by haze. The paulownia flowers are depicted using a gold and silver nunome zogan inlay technique. The tsuba comes with an NBTHK Hozon certificate, recognizing its historical and artistic value.
mumei · Kumagaya · Edo






Kumagai School
Edo
Higo
Unsigned
Hozon (NBTHK)
Higo · Musashi
8 pieces on the market now
| Smith | Era | Designated |
|---|---|---|
| Kumagai Yoshitsugu熊谷義次 | — | 0 |
| Kumagai Yoshiyuki熊谷義之 | — | 0 |
Certifies a genuine fitting worth preserving: a correct signature, or, if unsigned, an identifiable era and school, with recognized artistic and craft value.
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 siteReturns/exchanges limited to defects caused by shipping (except willful misconduct or gross negligence by the company); customers must contact within 72 hours of receiving the product.
This rectangular iron tsuba, attributed to the Kumagaya school of the Edo period, features an elegant design of paulownia flowers surrounded by haze. The paulownia flowers are depicted using a gold and silver nunome zogan inlay technique. The tsuba comes with an NBTHK Hozon certificate, recognizing its historical and artistic value.
mumei · Kumagaya · Edo






Kumagai School
Edo
Higo
Unsigned
Hozon (NBTHK)
Higo · Musashi
8 pieces on the market now
| Smith | Era | Designated |
|---|---|---|
| Kumagai Yoshitsugu熊谷義次 | — | 0 |
| Kumagai Yoshiyuki熊谷義之 | — | 0 |
Certifies a genuine fitting worth preserving: a correct signature, or, if unsigned, an identifiable era and school, with recognized artistic and craft value.
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 siteReturns/exchanges limited to defects caused by shipping (except willful misconduct or gross negligence by the company); customers must contact within 72 hours of receiving the product.