Muromachi turned sword making into an industry: the uchigatana rose with massed infantry warfare, Osafune and Seki produced bundle swords beside custom orders, and the Ming trade carried Japanese blades abroad by the tens of thousands.
This is a tanto by Kanetsuji, a swordsmith from the Sue-Seki school in the late Muromachi period. The blade features shirake-utsuri and a gunome hamon. It comes with a small-katana koshirae that is in good condition, making it an excellent choice for any collection.
mei · Sue-Seki · Koji (1555-1558) · nagasa 29cm · sori 0.2cm




















Mino · around 1555-1558
Tōken Taikan top 76%
2 pieces on the market now
Muromachi turned sword making into an industry: the uchigatana rose with massed infantry warfare, Osafune and Seki produced bundle swords beside custom orders, and the Ming trade carried Japanese blades abroad by the tens of thousands.
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 siteThree-day cooling-off period from receipt for refund or exchange. Return shipping and transfer fees are customer responsibility. Items showing use or condition changes are non-returnable.


This is a tanto by Kanetsuji, a swordsmith from the Sue-Seki school in the late Muromachi period. The blade features shirake-utsuri and a gunome hamon. It comes with a small-katana koshirae that is in good condition, making it an excellent choice for any collection.
mei · Sue-Seki · Koji (1555-1558) · nagasa 29cm · sori 0.2cm




















Mino · around 1555-1558
Tōken Taikan top 76%
2 pieces on the market now
Muromachi turned sword making into an industry: the uchigatana rose with massed infantry warfare, Osafune and Seki produced bundle swords beside custom orders, and the Ming trade carried Japanese blades abroad by the tens of thousands.
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 siteThree-day cooling-off period from receipt for refund or exchange. Return shipping and transfer fees are customer responsibility. Items showing use or condition changes are non-returnable.

