This small, flat metal piece has a quartrefoil shape. Two holes in the middle. Flame-like incision all over the piece. Silver is applied around the center hole.
Tsuba (sword guard) is inserted between a sword handle and blade to protect hands from sharp blades. The center hole is where the sword is placed. The smaller hole is to insert kozuka, an ornamental stick. This particlar tsuba has incised, overall frame design.