This katana, though unsigned due to being O-suriage, clearly exhibits the characteristics of the Shimada smiths from Suruga province, active around the Tensho era (1573-1592). It features a long blade, very wide mihaba, and thick kasane, with a powerful form. The jigane is a well-packed itame mixed with mokume, showing vibrant chikei, and the hamon is a varied ko-gunome choji with pointed and crab-claw patterns, creating a magnificent impression.
suriage-mumei · Shimada · Momoyama · nagasa 72.87cm · sori 1.79cm










Soshu-den · Suruga
14 pieces on the market now
The Shimada school (島田) took its name from its base in Suruga Province, where it worked from the mid-Muromachi period along the Tōkaidō between the Mino hearths and the late Sōshū smiths of neighboring Sagami. The published sources place its founding generation in the Kōshō (or Kyōshō) era and trace its principal names without interruption down into the shintō period, with the same names continuing as late as the shinshintō era. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Yoshisuke義助 | 1492-1504 | 7 |
| Sukemune助宗 | 1444-1449 | 5 |
| Yoshisuke義助 | 1455-1526 | 4 |
| Yoshisuke義助 | 1573-1592 | 3 |
| Hirosuke廣助 | 1504-1521 | 9 |
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 siteIf, due to our fault, the item differs significantly from its proper condition, the item may be returned. Cooling-off is within one week of the item's arrival.
This katana, though unsigned due to being O-suriage, clearly exhibits the characteristics of the Shimada smiths from Suruga province, active around the Tensho era (1573-1592). It features a long blade, very wide mihaba, and thick kasane, with a powerful form. The jigane is a well-packed itame mixed with mokume, showing vibrant chikei, and the hamon is a varied ko-gunome choji with pointed and crab-claw patterns, creating a magnificent impression.
suriage-mumei · Shimada · Momoyama · nagasa 72.87cm · sori 1.79cm










Soshu-den · Suruga
14 pieces on the market now
The Shimada school (島田) took its name from its base in Suruga Province, where it worked from the mid-Muromachi period along the Tōkaidō between the Mino hearths and the late Sōshū smiths of neighboring Sagami. The published sources place its founding generation in the Kōshō (or Kyōshō) era and trace its principal names without interruption down into the shintō period, with the same names continuing as late as the shinshintō era. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Yoshisuke義助 | 1492-1504 | 7 |
| Sukemune助宗 | 1444-1449 | 5 |
| Yoshisuke義助 | 1455-1526 | 4 |
| Yoshisuke義助 | 1573-1592 | 3 |
| Hirosuke廣助 | 1504-1521 | 9 |
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 siteIf, due to our fault, the item differs significantly from its proper condition, the item may be returned. Cooling-off is within one week of the item's arrival.