met-armsarmor:Sword Guard (Tsuba), 19th century, Metropolitan Museum of Art: Arms and ArmorH. O. Hav
met-armsarmor:Sword Guard (Tsuba), 19th century, Metropolitan Museum of Art: Arms and ArmorH. O. Havemeyer Collection, Bequest of Mrs. H. O. Havemeyer, 1929Size: H. 2 ¾ in. (7 cm); W. 2 3/8 in. (6 cm); thickness 3/16 in. (0.5 cm); Wt. 3.6 oz. (102.1 g)Medium: Copper, copper-silver alloy (shibuichi), copper-gold alloy (shakudō), gold, silverhttps://www.metmuseum.org/art/collection/search/34422 -- source link