The twentieth century nearly killed the craft twice: wartime distortion, then the occupation ban. The NBTHK’s founding in 1948 and licensed forging from 1953 rebuilt the sword as an art, crowned by Living National Treasures and the mukansa rank.
This katana by Kasagasa Masamine, dated August, Heisei 10 (1998), features a beautifully forged ko-itame hada with masame mixed in, thick ji-nie, and clear utsuri. The hamon is gunome midare with choji and togari-gokoro, showing active nie and nioi-ashi. It comes with both a shirasaya and a gold nashiji uchigatana koshirae, and is certified Hozon Token by the NBTHK.
mei · Showa (1926-1989) · nagasa 73cm · sori 2.7cm















Ishikawa · around 1921-1998
11 pieces on the market now
Shōwa to the present: destruction and revival
The twentieth century nearly killed the craft twice: wartime distortion, then the occupation ban. The NBTHK’s founding in 1948 and licensed forging from 1953 rebuilt the sword as an art, crowned by Living National Treasures and the mukansa rank.
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 siteWithin one week of the item's arrival (cooling-off is possible within Japan only). For defects that differ from the purchase conditions, we will accept the return and refund the payment. For other cases such as overseas, we will consult separately.
¥2,800,000
This katana by Kasagasa Masamine, dated August, Heisei 10 (1998), features a beautifully forged ko-itame hada with masame mixed in, thick ji-nie, and clear utsuri. The hamon is gunome midare with choji and togari-gokoro, showing active nie and nioi-ashi. It comes with both a shirasaya and a gold nashiji uchigatana koshirae, and is certified Hozon Token by the NBTHK.
mei · Showa (1926-1989) · nagasa 73cm · sori 2.7cm















Ishikawa · around 1921-1998
11 pieces on the market now
Shōwa to the present: destruction and revival
The twentieth century nearly killed the craft twice: wartime distortion, then the occupation ban. The NBTHK’s founding in 1948 and licensed forging from 1953 rebuilt the sword as an art, crowned by Living National Treasures and the mukansa rank.
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 siteWithin one week of the item's arrival (cooling-off is possible within Japan only). For defects that differ from the purchase conditions, we will accept the return and refund the payment. For other cases such as overseas, we will consult separately.
¥2,800,000