Katana in Shirasaya, with Koshirae(NBTHK Tokubetsu Hozon Token.) Signature:Mumei(unsigned) attributed as Ko-Ho-ki The blade was polished Habaki: Gold foiled double habaki. Blade length : 74.8 cm or 29.44 inches. Sori : 2.0 cm or0.78 inches. Mekugi: 3 Width at the ...