It has appeared, it has appeared! A special-order suguha tanto with a beautiful shinogi-zukuri form by the ultra-famous smith of the Bizen Osafune Shinto period, Yokoyama Kozuke Daijo Fujiwara Sukesada—a piece that seems like it should exist but is rarely encountered. The form of a shinogi-zukuri tanto is difficult to execute, and the skill of Yokoyama Kozuke Daijo Fujiwara Sukesada, who could produce such a magnificent and crisp tanto shape as seen here, is supreme. He is the representative smith of Bizen Osafune in the early Edo period, regarded as the most skilled and highly evaluated master. This tanto was crafted in the 14th year of Genroku (1701) (325 years ago), exactly at the time when the great incident occurred where the Akō Domain Lord Asano Takumi-no-Kami slashed the Koke Kira Kozuke-no-Suke in the Corridor of Pines (Matsu no Rōka), marking the beginning of the story of the Akō Roshi’s righteous undertaking. Yokoyama Kozuke Daijo Sukesada’s real name was Yokoyama Heibei, and he was the son of Shichibei Sukesada. The sugata of this tanto is shinogi-zukuri, displaying a magnificent form with a difference between the moto-mihaba and saki-mihaba and a slight sori. The jigane is a finely packed ko-itame hada, presenting a bright and excellent steel. The hamon is finished in nioi-deki with ko-nie, a sugu-cho style tempered consistently and skillfully. This tanto has been cherished for generations in an old family, but as they have grown old, we have been entrusted to pass this precious tanto by Yokoyama Kozuke Daijo Fujiwara Sukesada to someone who will treasure it at an affordable price; thus, it is a direct candidate for Hozon Token. On this occasion, we are offering it at an ultra-low price. Please by all means enjoy this magnificent tanto by Yokoyama Kozuke Daijo Fujiwara Sukesada, a work rarely seen.
signed · 長船 · Shin-Shinto · nagasa 28.7cm · sori 0.4cm











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 siteFor returns due to customer circumstances, the cost is the customer's responsibility. For returns due to our mis-shipment or a defective item, we bear the cost.
It has appeared, it has appeared! A special-order suguha tanto with a beautiful shinogi-zukuri form by the ultra-famous smith of the Bizen Osafune Shinto period, Yokoyama Kozuke Daijo Fujiwara Sukesada—a piece that seems like it should exist but is rarely encountered. The form of a shinogi-zukuri tanto is difficult to execute, and the skill of Yokoyama Kozuke Daijo Fujiwara Sukesada, who could produce such a magnificent and crisp tanto shape as seen here, is supreme. He is the representative smith of Bizen Osafune in the early Edo period, regarded as the most skilled and highly evaluated master. This tanto was crafted in the 14th year of Genroku (1701) (325 years ago), exactly at the time when the great incident occurred where the Akō Domain Lord Asano Takumi-no-Kami slashed the Koke Kira Kozuke-no-Suke in the Corridor of Pines (Matsu no Rōka), marking the beginning of the story of the Akō Roshi’s righteous undertaking. Yokoyama Kozuke Daijo Sukesada’s real name was Yokoyama Heibei, and he was the son of Shichibei Sukesada. The sugata of this tanto is shinogi-zukuri, displaying a magnificent form with a difference between the moto-mihaba and saki-mihaba and a slight sori. The jigane is a finely packed ko-itame hada, presenting a bright and excellent steel. The hamon is finished in nioi-deki with ko-nie, a sugu-cho style tempered consistently and skillfully. This tanto has been cherished for generations in an old family, but as they have grown old, we have been entrusted to pass this precious tanto by Yokoyama Kozuke Daijo Fujiwara Sukesada to someone who will treasure it at an affordable price; thus, it is a direct candidate for Hozon Token. On this occasion, we are offering it at an ultra-low price. Please by all means enjoy this magnificent tanto by Yokoyama Kozuke Daijo Fujiwara Sukesada, a work rarely seen.
signed · 長船 · Shin-Shinto · nagasa 28.7cm · sori 0.4cm











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 siteFor returns due to customer circumstances, the cost is the customer's responsibility. For returns due to our mis-shipment or a defective item, we bear the cost.