This is a tanto by Sakuyo Masatoshi, also known as Tada Shiroemon, a disciple of Hosokawa Masayoshi and a swordsmith for the Tsuyama domain. Active from Koka to Genji periods, he led a prominent group of smiths in Mimasaka during the late Edo period. The blade comes with a unique lacquered saya tanto koshirae and is housed in a shirasaya, accompanied by an NBTHK Hozon Token certificate.
Certificate reading — 銘 作陽正利 安政□年八月日
mei · Shin-shinto · nagasa 14cm · sori 0.2cm



Mimasaka · around 1844-1848
Fujishiro Chu saku · Tōken Taikan top 95%
2 pieces on the market now
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 siteCooling-off (returns or exchanges) is accepted within 3 days of the item's arrival. Return shipping and refund transfer fees are the customer's responsibility. Fees other than the item price (transfer fees, credit card fees, etc.) cannot be refunded. Returns and refunds are not available for overseas destinations.
This is a tanto by Sakuyo Masatoshi, also known as Tada Shiroemon, a disciple of Hosokawa Masayoshi and a swordsmith for the Tsuyama domain. Active from Koka to Genji periods, he led a prominent group of smiths in Mimasaka during the late Edo period. The blade comes with a unique lacquered saya tanto koshirae and is housed in a shirasaya, accompanied by an NBTHK Hozon Token certificate.
Certificate reading — 銘 作陽正利 安政□年八月日
mei · Shin-shinto · nagasa 14cm · sori 0.2cm



Mimasaka · around 1844-1848
Fujishiro Chu saku · Tōken Taikan top 95%
2 pieces on the market now
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 siteCooling-off (returns or exchanges) is accepted within 3 days of the item's arrival. Return shipping and refund transfer fees are the customer's responsibility. Fees other than the item price (transfer fees, credit card fees, etc.) cannot be refunded. Returns and refunds are not available for overseas destinations.