Katana in Shirasaya, with Koshirae(NBTHK Tokubetsu Hozon paper) Signature : Mumei (Hokke) (We divide 4 sections for each sword as Saijyo saku, Jyojyo saku Jyo saku and regular saku) This Mumei (Hokke) belongs to Jyojyo Saku ranking. The blade was ...