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 tachi is a work by Isobe Ikkan-sai Mitsuhiro, a smith residing in Shizuoka Prefecture. He is known for creating pieces that capture the essence of the beloved sword 'Sohayanotsurugi' from Kunozan Toshogu, which he studied repeatedly. Mitsuhiro is a disciple of Ikkan-sai Tsunehisa, from the Miyaguchi Ikkan-sai Shigehisa lineage, who learned from Hamabe Jukaku and Ozaki Suketaka in the late Edo period.
mei · Ikkan-Sai · Heisei

Shizuoka · around 1926-1989
4 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.
We could not find an authenticity certificate on the seller’s listing. Japanese swords and fittings are normally papered by the NBTHK (or the NTHK). Without one, the attribution is the seller’s own assessment and has not been independently verified — treat it with caution and ask the dealer about certification before buying.
If, 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 tachi is a work by Isobe Ikkan-sai Mitsuhiro, a smith residing in Shizuoka Prefecture. He is known for creating pieces that capture the essence of the beloved sword 'Sohayanotsurugi' from Kunozan Toshogu, which he studied repeatedly. Mitsuhiro is a disciple of Ikkan-sai Tsunehisa, from the Miyaguchi Ikkan-sai Shigehisa lineage, who learned from Hamabe Jukaku and Ozaki Suketaka in the late Edo period.
mei · Ikkan-Sai · Heisei

Shizuoka · around 1926-1989
4 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.
We could not find an authenticity certificate on the seller’s listing. Japanese swords and fittings are normally papered by the NBTHK (or the NTHK). Without one, the attribution is the seller’s own assessment and has not been independently verified — treat it with caution and ask the dealer about certification before buying.
If, 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.