Perry’s arrival in 1853 unraveled the Tokugawa peace and created the first mass demand for working swords in two centuries. Kiyomaro, called the Masamune of Yotsuya, died on its eve; Munetsugu and Yukihide carried the boom to the end.
This is a katana made by Yokoyama Sukemitsu, who was born in Edo Aoyama and later became a retainer of the Mito domain lord Nariaki. This particular blade features a large kissaki and a hamon of gunome mixed with ko-choji, reflecting the style of Nagayoshi from the Nanbokucho period. It comes with an NBTHK Tokubetsu Hozon paper, shirasaya, and a black lacquer saya koshirae.
mei · Yokoyama · Shin-shinto · nagasa 69.1cm · sori 2cm










Hitachi · around 1854-1860
Fujishiro Chu saku · Tōken Taikan top 95%
2 pieces on the market now
Bakumatsu: the last war market
Perry’s arrival in 1853 unraveled the Tokugawa peace and created the first mass demand for working swords in two centuries. Kiyomaro, called the Masamune of Yotsuya, died on its eve; Munetsugu and Yukihide carried the boom to the end.
A Hozon-certified blade judged to show notably superior workmanship and a better state of preservation. The bar is higher: re-tempered blades and most unsigned Muromachi/Edo works are excluded.
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 siteFor cooling-off, contact us within 3 days including the day you received the item, and ship it so that it arrives within 8 days. After 8 days a return cannot be accepted. Returning an item after 8 days will be treated as a buy-back.
This is a katana made by Yokoyama Sukemitsu, who was born in Edo Aoyama and later became a retainer of the Mito domain lord Nariaki. This particular blade features a large kissaki and a hamon of gunome mixed with ko-choji, reflecting the style of Nagayoshi from the Nanbokucho period. It comes with an NBTHK Tokubetsu Hozon paper, shirasaya, and a black lacquer saya koshirae.
mei · Yokoyama · Shin-shinto · nagasa 69.1cm · sori 2cm










Hitachi · around 1854-1860
Fujishiro Chu saku · Tōken Taikan top 95%
2 pieces on the market now
Bakumatsu: the last war market
Perry’s arrival in 1853 unraveled the Tokugawa peace and created the first mass demand for working swords in two centuries. Kiyomaro, called the Masamune of Yotsuya, died on its eve; Munetsugu and Yukihide carried the boom to the end.
A Hozon-certified blade judged to show notably superior workmanship and a better state of preservation. The bar is higher: re-tempered blades and most unsigned Muromachi/Edo works are excluded.
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 siteFor cooling-off, contact us within 3 days including the day you received the item, and ship it so that it arrives within 8 days. After 8 days a return cannot be accepted. Returning an item after 8 days will be treated as a buy-back.