Perry’s arrival in 1853 unraveled the Tokugawa peace and created the first mass demand for working swords in two centuries. Kiyomaro, called the Masamune of Yotsuya, died on its eve; Munetsugu and Yukihide carried the boom to the end.
This is a wakizashi by Kenryushi Sadaharu, a student of Gassan Sadakichi and brother-disciple of Gassan Sadakazu, active from Keio to Meiji. Forged as a sun-nobi tanto, it features a wide, robust body with well-forged ko-itame jigane and prominent masame in the hamon. The blade comes with an NBTHK Hozon Token certificate and is housed in shirasaya with a suaka-ji kin-kise double habaki.
Certificate reading — 銘 浪華住剣龍子貞晴(刻印) 慶応元乙丑歳八月
mei · Gassan · Keio (1865-1868) · nagasa 31.6cm








Shinshinto · Settsu · around 1865-1868
Tōken Taikan top 95%
7 pieces on the market now
Shinshinto · Settsu
36 pieces on the market now
| Smith | Era | Designated |
|---|---|---|
| Sadakazu貞一 | 1864-1865 | 2 |
| Sadaharu貞晴 | 1865-1868 | 0 |
| Sadayoshi貞吉 | 1926-1989 | 0 |
| Yoshiaki吉明 | 1844-1848 | 0 |
| Sadayoshi貞吉 | 1830-1863 | 0 |
Bakumatsu: the last war market
Perry’s arrival in 1853 unraveled the Tokugawa peace and created the first mass demand for working swords in two centuries. Kiyomaro, called the Masamune of Yotsuya, died on its eve; Munetsugu and Yukihide carried the boom to the end.
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 siteReturns accepted within 3 days of delivery for defective items or significant discrepancies; customer bears return shipping and bank fees.
¥1,100,000
This is a wakizashi by Kenryushi Sadaharu, a student of Gassan Sadakichi and brother-disciple of Gassan Sadakazu, active from Keio to Meiji. Forged as a sun-nobi tanto, it features a wide, robust body with well-forged ko-itame jigane and prominent masame in the hamon. The blade comes with an NBTHK Hozon Token certificate and is housed in shirasaya with a suaka-ji kin-kise double habaki.
Certificate reading — 銘 浪華住剣龍子貞晴(刻印) 慶応元乙丑歳八月
mei · Gassan · Keio (1865-1868) · nagasa 31.6cm








Shinshinto · Settsu · around 1865-1868
Tōken Taikan top 95%
7 pieces on the market now
Shinshinto · Settsu
36 pieces on the market now
| Smith | Era | Designated |
|---|---|---|
| Sadakazu貞一 | 1864-1865 | 2 |
| Sadaharu貞晴 | 1865-1868 | 0 |
| Sadayoshi貞吉 | 1926-1989 | 0 |
| Yoshiaki吉明 | 1844-1848 | 0 |
| Sadayoshi貞吉 | 1830-1863 | 0 |
Bakumatsu: the last war market
Perry’s arrival in 1853 unraveled the Tokugawa peace and created the first mass demand for working swords in two centuries. Kiyomaro, called the Masamune of Yotsuya, died on its eve; Munetsugu and Yukihide carried the boom to the end.
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 siteReturns accepted within 3 days of delivery for defective items or significant discrepancies; customer bears return shipping and bank fees.
¥1,100,000