Katana in Shirasaya, with Koshirae(NBTHK Tokubetsu Kicho paper) Koshirae (mounting) NBTHK Tokubetsu Kicyo Token To-so-gu. Signature :Mumei(unsigned) attributed as Bishu Osahune Sukesada. (We divide 4 sections for each sword as Saijyo saku, Jyojyo saku Jyo saku and regular saku) ThisMumei(unsigned) ...