Hachisuka Kotetsu

The Hachisuka Kotetsu is a celebrated blade forged by Nagasone Kotetsu, regarded as the greatest swordsmith of the early Edo period, and is particularly renowned for its transmission through the Hachisuka family, lords of Tokushima Domain. Kotetsu was originally an armor craftsman from Echizen (present-day Fukui Prefecture), but around age fifty (circa 1656, during the Meireki era), he transitioned from armor craftsmanship to swordsmithing. His late-blooming talent flourished, and he became a master craftsman of Edo who dominated his generation. He is among the most highly esteemed swordsmiths of the Shintō period. The sharpness of his blades became widely known in samurai society as "Kotetsu's edge," earning recognition so great that he was mentioned alongside Masamune in the phrase "Kotetsu or Masamune?" This blade has a cutting edge length of approximately 69.1 centimeters. Its hamon features gunome-midare as the dominant pattern, with abundant ko-nie and nioi throughout the blade. The steel displays densely packed ko-itame with a fine finish, and exhibits the characteristic bright luster distinctive of Kotetsu's finest work. The nakago bears a mei inscribed "Nagasone Okisato Nyūdō Kotetsu," indicating craftsmanship from Kotetsu's prime period. It is documented that during the Edo period this blade was housed by the Hachisuka family of Awa Tokushima Domain. It currently resides in private collection as a celebrated blade transmitted through the Hachisuka family, lords of Tokushima Domain. It is well known that Kondō Isao, commander of the Shinsengumi, favored a Kotetsu as his cherished blade, and this former Kotetsu of the Hachisuka family likewise exemplifies his legendary status.