Iron tsuba of round form with design of diamond-shaped family crest (waribishi-mon) in openwork (sukashi). Bevelled, raised rim. Kozuka-hitsu-ana plugged with tin or lead.

Ko-Katchushi school.

Early Muromachi period: Early 15th century (Oei era).

Size: Height: 89.3 mm. Width: 89.0 mm. Rim thickness: 4.3 mm. Center thickness: 2.9 mm.

Provenance: Sasano Masayuki Collection, № 41: “In this tsuba, a family crest incorporating four lozenges sits upright on the right side of the nakago-ana. The straight lines of the lozenge add substance and power. Initially, the crest creates confusion regarding the age, yet the overall impression is one lacking in vigor and probably dates rather later than Nanbokucho period”.