Katana in Shirasaya(NBTHK Hozon paper) Signature : Mumei(Chiyozuru) (We divide 4 sections for each sword as Saijyo saku, Jyojyo saku Jyo saku and regular saku) This Mumei(Chiyoduru) belongs to regular saku ranking. The blade was polished. Blade length : 68.45 ...