Kozuka: (NBTHK Hozon Paper) Mei (signature) : Mumei(Unsigned)(Ko-kinko school) Length : 9.68 cm x 1.39 cm ( 3.81 inches x 0.54 inches) Jidai(era) : Late Muromachi period. Special feature: On the Shakudo nanako plate, three turtles are engraved. It is ...