Masakuni (active circa 1660) A Yamashiro wakizashi Edo period (1615-1868), 17th century Of shobuzukuri configuration forged in itame hada mixed with masame hada and with a notare tempered edge with visible nie and sunagashi, the ubu tang with one hole and sujikai file marks, signed Joshu no ju Masakuni, 16 1/8in (40.9cm) long, with a one-piece gold-foil habaki, in a wood shirasaya storage scabbard With Tokubetsu Hozon Token (Sword Especially Worthy of Preserving) certificate issued by the Nihon Bijutsu Token Hozon Kyokai (Society for the Preservation of the Japanese Art Sword)