KUNIYASU LINEAGE A Shintō Tantō in Mounts Momoyama (1573-1615) or Edo (1615-1868) period, 16th/17th century Hirazukuri, iorimune, with no curvature, forged in ko-itame hada and with a gunome midare tempered edge and a ko-maru bōshi, the ubu tang with two holes, sujikai file marks and gold-inlaid attribution signature Kuniyasu, with a one-piece gold-foil habaki; the 19th-century koshira-e mounted with animal-themed fittings, the ribbed brown-lacquer saya decorated with ravens in black and gold hi