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.
This tanto is a masterpiece by Yokoyama Kaga no Suke Fujiwara Sukenaga, a smith from the Yokoyama school in Bizen province, active in the late Edo period. It features a beautiful hirazukuri shape with a well-forged koitame hada and a bright choji-midare hamon. The blade is accompanied by an NBTHK Tokubetsu Hozon Token certificate.
mei · Yokoyama · Tenpo (1830-1844) · nagasa 30.1cm · sori 0.3cm





Bizen-den · Bizen · around 1830-1844
Fujishiro Jo saku · Tōken Taikan top 63%
14 pieces on the market now
Bizen-den · Bizen
45 pieces on the market now
| Smith | Era | Designated |
|---|---|---|
| Sukenobu祐信 | 1830-1844 | 0 |
| Suketaka祐高 | 1865-1868 | 0 |
| Sukeharu祐春 | 1864-1865 | 0 |
| Sukehiro祐廣 | 1854-1860 | 0 |
| Sukekane祐包 | 1868-1912 | 0 |
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.
A Hozon-certified blade judged to show notably superior workmanship and a better state of preservation. The bar is higher: re-tempered blades and most unsigned Muromachi/Edo works are excluded.
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 siteNo cooling-off period or returns; refund only if the purchased sword is proven fake, capped at purchase price (excludes commission sales, accessories, auction items).


This tanto is a masterpiece by Yokoyama Kaga no Suke Fujiwara Sukenaga, a smith from the Yokoyama school in Bizen province, active in the late Edo period. It features a beautiful hirazukuri shape with a well-forged koitame hada and a bright choji-midare hamon. The blade is accompanied by an NBTHK Tokubetsu Hozon Token certificate.
mei · Yokoyama · Tenpo (1830-1844) · nagasa 30.1cm · sori 0.3cm





Bizen-den · Bizen · around 1830-1844
Fujishiro Jo saku · Tōken Taikan top 63%
14 pieces on the market now
Bizen-den · Bizen
45 pieces on the market now
| Smith | Era | Designated |
|---|---|---|
| Sukenobu祐信 | 1830-1844 | 0 |
| Suketaka祐高 | 1865-1868 | 0 |
| Sukeharu祐春 | 1864-1865 | 0 |
| Sukehiro祐廣 | 1854-1860 | 0 |
| Sukekane祐包 | 1868-1912 | 0 |
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.
A Hozon-certified blade judged to show notably superior workmanship and a better state of preservation. The bar is higher: re-tempered blades and most unsigned Muromachi/Edo works are excluded.
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 siteNo cooling-off period or returns; refund only if the purchased sword is proven fake, capped at purchase price (excludes commission sales, accessories, auction items).

