This is a rare and high-quality Katana sword attributed to the swordsmith Kusano Yoshiaki, made at the end of the Edo period. It features a unique double-edged Kogarasu-Tsukuri design and a beautiful Notare swell tempered pattern with Choji clover. The blade is accompanied by an NBTHK Hozon certificate, indicating its well-preserved condition and historical value, and comes with ornate Edo period Tachi-style mountings and a Shirasaya.
Certificate reading — 無銘（草野吉明）
NihontoWatchBETAmumei · Koka (1844-1848) · nagasa 68cm · sori 0.5cm
Shinshinto · Settsu · around 1844-1848
Tōken Taikan top 97%
2 pieces on the market now
Shinshinto · Settsu
40 pieces on the market now
| Smith | Era | Designated |
|---|---|---|
| Sadaharu貞晴 | 1865-1868 | 0 |
| Sadayoshi貞吉 | 1926-1989 | 0 |
| Yoshiaki吉明 | 1844-1848 | 0 |
| Naonobu直信 | 1854-1860 | 0 |
| Sadayoshi貞吉 | 1830-1863 | 0 |
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 only for errors/damage: damaged or incorrect items reported by email within 10 calendar days; defective goods within 30 calendar days.
This is a rare and high-quality Katana sword attributed to the swordsmith Kusano Yoshiaki, made at the end of the Edo period. It features a unique double-edged Kogarasu-Tsukuri design and a beautiful Notare swell tempered pattern with Choji clover. The blade is accompanied by an NBTHK Hozon certificate, indicating its well-preserved condition and historical value, and comes with ornate Edo period Tachi-style mountings and a Shirasaya.
Certificate reading — 無銘（草野吉明）
NihontoWatchBETAmumei · Koka (1844-1848) · nagasa 68cm · sori 0.5cm
Shinshinto · Settsu · around 1844-1848
Tōken Taikan top 97%
2 pieces on the market now
Shinshinto · Settsu
40 pieces on the market now
| Smith | Era | Designated |
|---|---|---|
| Sadaharu貞晴 | 1865-1868 | 0 |
| Sadayoshi貞吉 | 1926-1989 | 0 |
| Yoshiaki吉明 | 1844-1848 | 0 |
| Naonobu直信 | 1854-1860 | 0 |
| Sadayoshi貞吉 | 1830-1863 | 0 |
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 only for errors/damage: damaged or incorrect items reported by email within 10 calendar days; defective goods within 30 calendar days.
![Tanto - Hozon - by Gassan Sadayoshi - Fuyou Asahi, Ansei Hebidoshi 8gatsuhi (Attributed to Gassan Sadayoshi) [NBTHK Hozon]](/_next/image?url=https%3A%2F%2Fitbhfhyptogxcjbjfzwx.supabase.co%2Fstorage%2Fv1%2Fobject%2Fpublic%2Flisting-images%2Ftoyuukai%2FL519985%2F02.jpg&w=2560&q=90)
