Ordering number : 13002 Katana in Shirasaya, with Koshirae. (NBTHK Hozon Paper) Signature:Mumei(unsigned) attributed as Katsumura Masakatsu. The blade was polished. Blade length : 71.51 cm or 28.15 inches. Sori : 2.25 cm or 0.88 inches. Mekugi : 2 Width ...