An Edo period tsuba from the Kumagai school, featuring a chrysanthemum and paulownia design with silver nunome inlay on an iron base. The tsuba is in excellent condition and was certified Hozon by the NBTHK in November 2024. The design includes a wave pattern on the rim.
Certificate reading — 無銘（熊谷派）
NihontoWatchBETAmumei · Edo
Kumagai School
Edo
Musashi
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 siteDomestic: items may be returned within 7 days in original condition for a full refund (buyer covers transport). Overseas orders: no-refunds, no-returns.
An Edo period tsuba from the Kumagai school, featuring a chrysanthemum and paulownia design with silver nunome inlay on an iron base. The tsuba is in excellent condition and was certified Hozon by the NBTHK in November 2024. The design includes a wave pattern on the rim.
Certificate reading — 無銘（熊谷派）
NihontoWatchBETAmumei · Edo
Kumagai School
Edo
Musashi
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 siteDomestic: items may be returned within 7 days in original condition for a full refund (buyer covers transport). Overseas orders: no-refunds, no-returns.
