This is a mumei (unsigned) katana attributed to the Dotanuki school. It has a nagasa of 65.6 cm and a sori of 1.9 cm. The blade is certified as Hozon by the NBTHK.
mumei · Dotanuki · Shinto · nagasa 65.6cm · sori 1.9cm

Bizen-den · Higo · around 1573-1611
Tōken Taikan top 60%
5 pieces on the market now
Where Dotanuki stands among comparable artisans: across all of nihontō, and within tradition, era, and period. The tiers (Foremost · Leading · Major · Notable) weigh official designations from the NBTHK and Japan's Agency for Cultural Affairs, together with historical honors of lasting repute such as the Sansaku and Meibutsu-chō.
Select a lens to see how it's measured.
Years he was demonstrably active, proven by signed-and-dated blades
Bizen-den · Higo
16 pieces on the market now
The Dōtanuki (同田貫) line took shape in Kikuchi District of Higo Province toward the close of the Muromachi period and carried its activity forward into the shintō era, spanning the Momoyama transition into early Edo. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Muneharu宗春 | 1865-1868 | 0 |
| Kunikatsu國勝 | 1558-1570 | 0 |
| Kagemasa景和 | 1596-1615 | 0 |
| Munehiro宗廣 | 1830-1868 | 0 |
| Kozukenosuke上野介 | 1596-1615 | 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 siteThis is a mumei (unsigned) katana attributed to the Dotanuki school. It has a nagasa of 65.6 cm and a sori of 1.9 cm. The blade is certified as Hozon by the NBTHK.
mumei · Dotanuki · Shinto · nagasa 65.6cm · sori 1.9cm

Bizen-den · Higo · around 1573-1611
Tōken Taikan top 60%
5 pieces on the market now
Where Dotanuki stands among comparable artisans: across all of nihontō, and within tradition, era, and period. The tiers (Foremost · Leading · Major · Notable) weigh official designations from the NBTHK and Japan's Agency for Cultural Affairs, together with historical honors of lasting repute such as the Sansaku and Meibutsu-chō.
Select a lens to see how it's measured.
Years he was demonstrably active, proven by signed-and-dated blades
Bizen-den · Higo
16 pieces on the market now
The Dōtanuki (同田貫) line took shape in Kikuchi District of Higo Province toward the close of the Muromachi period and carried its activity forward into the shintō era, spanning the Momoyama transition into early Edo. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Muneharu宗春 | 1865-1868 | 0 |
| Kunikatsu國勝 | 1558-1570 | 0 |
| Kagemasa景和 | 1596-1615 | 0 |
| Munehiro宗廣 | 1830-1868 | 0 |
| Kozukenosuke上野介 | 1596-1615 | 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 site