A highly unusual Umetada tsuba with iron on one side and shakudo on the other.  The sukashi piercings on the iron side go through to an inlaid copper plate, and together they make up the leaves of the paulownia (kiri) plant.  The leaves form a stylised version of the family mon used by several Japanses families, including Toyotomi Hideyoshi.

It appears there are 3 layers to this tsuba, the shakudo plate, the iron plate and a inner copper plate.  There are held together with 3 rivets which can be seen at the top and bottom of the seppa-dai on the back of the tsuba.

NBTHK Hozon Paper. Early Edo (ca. 1650-1700).

7.6cm x 7.3cm