Period: Koto era, late Muromachi period (c. 1500s) Signature (mei): Mumei (unsigned) Blade (nagasa): 27 3/8 in. Mounts: In plain shira saya with a copper habaki Description: A classic unsigned katana from the Koto era, attributed to the Mino tradition of the late Muromachi period. The blade measures 27 3/8” with a graceful curvature and two mekugi-ana, evidence of multiple remountings during its long service life. The hamon is an attractive irregular midare with gunome elements, visible throughout the length, and continues into the kissaki with a well-formed <s