A Katana in Shirasaya, 1524, Japan, Katana, length 64.4 cm, Hira zukuri, itame hada, marumune, gonome hamon slightly changing into very thin suguha, the blade has several tateware and muneware. Mei (signed) Bishū Onomichi Jū NOBUYUKI Saku. Dated: Dai Ei san Nen, ni Gatsu, meaning the 3rd year 2nd month of Dei Ei, so February 1524. This sword received a Tokubetsu Kichō certificate given by The NBTHK, the Swordmuseum in Tokyo. The certificate was issued on Showa, 51, 12 month, 4e day. = 4th of December 1976. Ubu nakago, length: ni Shaku, ichi Sun, ni Pun go Rin. (= 64.4 cm) Nakago: Ha agari kurij jiri form, 1 mekugi ana, 16e century. Kotō period.