Sword Guard (Tsuba)

Round metal object with a gold outer rim. The gold rim has an etched pattern. The center is open with a dark brown metal shape. The shape has curved protrusions to the left, right and down. The curved protrusions to the left and right are rounded on their inner edge. The bottom protrusion tapers to a point. The background is gray. Title: Sword Guard (Tsuba). Artist: unknown.