Description ITEM DESCRIPTION: Comes with kimono or cotton bag. Comes with certificate of supein Nihonto. Comes WithJūhō Tōken Kenkyūkai Kanteisho Certificate. Comes with tokorusho photocopy (the original must remain in Japan). KATANA “Bizen Osafune-jū Yokoyama Sukekane / Tenpō 3 (1832)” 1. Translation of the Torokusho (Registration Certificate) Prefecture: SaitamaIssue date: December 22nd, 1982 (Shōwa 57) Inscription (mei): (Omote) Bizen Osafune-jū Yokoyama Sukekane (Ura) Tenpō 3, February → 1832 Blade length: 71.1 cm Curvature: 0.5 cmMekugi-ana: 2 2. Translation of the Authentication Certificate (Kanteisho) Issued by: Jūhō Tōken KenkyūkaiDate: August 29th, 2025 (Reiwa 7) Statement:“The above sword is hereby certified as genuine.” Technical information: Attributed smith: Yokoyama Sukekane (Bizen Osafune lineage) Date: Tenpō 3 (1832) Type: Katana Hamon: Suguha (straight) Hada: Classified within itame/mokume mixture Length: 71.1 cm Curvature: 0.5 cm School: Bizen-den Historical notes: Mentions Sukekane’s relation to the Yokoyama family and their work during the Tenpō era. 3. Technical Description of the Blade Signature Bizen Osafune-jū Yokoyama Sukekane — member of the Yokoyama branch, active in late Edo and known for clean Bizen-den workmanship. Date Tenpō 3 (1832). Blade features Nagasa: 71.1 cm Sori: 0.5 cm Kissaki: Small, well defined Nakago: 2 mekugi-ana, excellent patina, well-cut mei. Hada Visible itame mixed with mokume, harmonious and characteristic of late Bizen-den. Hamon Straight suguha, with fine internal activity (ko-nie), typical of Yokoyama refinement. Condition Healthy blade, clean geometry, well-preserved polish. 4. Koshirae Description Tsuba Iron sukashi tsuba with Torii motifs. Classical maru/mokko-gata structure. Fuchi-Kashira Decorated iron dragon motives. Menuki Golden dragon pair, finely detailed. Tsuka Black ito wrapping in hineri-maki style Samegawa intact Edo Period. Saya Glossy black lacquer; sageo in dark green. A complete Edo koshirae, balanced and aesthetically consistent. 5. Technical Summary Item Detail Smith Yokoyama Sukekane Date 1832 (Tenpō 3) Length 71.1 cm Curvature 0.5 cm Hamon Suguha Hada Itame/mokume Kissaki Small Mekugi-ana 2 Mounts Complete Edo koshirae Tsuba Iron, openwork Certificate (Jūhō Tōken Kenkyūkai) Registration Saitama, 1982 Relacionado
