Katana in Koshirae (NBTHK Hozon Paper) Signature: Bizen koku Ju Osafune Suke (ikakire) (Sukesada) Eiroku 10nen 2gatu (ikakire) The blade need polish(polishing cost: 40,000JPY) Habaki : Gold color iroe double habaki. Blade length : 65.15 cm or 25.64 inches. Sori : ...