Tanto in koshiraeShinshinto, 19th centuryNagasa [length]: 24.8 cmMotohaba: 2.9 cm,Kitae [forging pattern]: ko-itameHamon [tempering pattern]: midare and choji midareBōshi [point]: ko-maruku; kaeruHorimono: suken on omote and goma-ashi on uraNakago [tang]: ubu, sujikai; one mekugi-ana.Inscribed on both sides and on the back:Attributed by Kanzan sensei to Bizen Osafune Yokoyama SukekaneGifted on 31/01/1972 for the birthday to Toshio from his grandfather AkioEngraved by Living National Treasure Gassan SadakazuKoshirae: the tantō comes with a good Higo koshirae. The...