虫尽金具大小拵 Blade and Mounting for a Sword (<i>Katana</i>)
Yokoyama Kōzukedaijō Sukesada · blade, 17th century; mounting, early 19th century
Steel, wood, lacquer, copper-gold alloy (<i>shakudō</i>), gold, copper-silver alloy (<i>shibuichi</i>), ray skin (<i>same</i>), silk