{"product_id":"authentic-koto-era-katara-for-sale-mumei-nbthk-hozon-certificatekaifu-tozando","title":"Authentic Koto Era Katara for Sale - Mumei, NBTHK Hozon Certificate(Kaifu) | Tozando","description":"\u003cp\u003eDespite being unsigned, this katana has been recognized as a “Kaifu” by the Society for the Preservation of Japanese Art Swords.\u003c\/p\u003e\n\u003cp\u003eThe term “Kaifu” refers to swords that were produced in large numbers from the Kamakura period through the end of the Edo period in the Kaifu region of Awa Province (present-day Tokushima Prefecture), encouraged by the Kaifu clan. During the Edo period, these swords were forged in the town of Tokushima by smiths employed by the Hachisuka family.\u003c\/p\u003e\n\u003cp\u003eThe blade has been polished to reveal its original finish, and the jigane and hamon are clearly visible, allowing for a delightful appreciation of the sword. While there are no chips on the cutting edge, minor dents and nicks are visible throughout the blade. There is a flaw measuring approximately 1.5 cm by 8 mm located 11 cm from the hamachi toward the sashiura side. The jigane is a well-tempered ko-itame with visible yubashiri. The hamon is a tight, ni-o-kuchi sugaha, giving it a very refined appearance.\u003c\/p\u003e\n\u003cp\u003eAs mentioned earlier, in December 2025, the Society for the Preservation of Japanese Art Swords certified this piece as a work by Kaifu, conducted a preservation appraisal, and issued a certificate of authentication. The koshirae is a shirasaya (white scabbard) set.\u003c\/p\u003e\n\u003cp\u003eConsidering the condition of the blade, we have set a very reasonable price. This sword is highly recommended for those who wish to purchase their first Japanese sword but have a limited budget and prefer a piece with a certificate of authenticity.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBlade length: 69.6 cm\u003c\/li\u003e\n\u003cli\u003eCurvature: 1.7 cm\u003c\/li\u003e\n\u003cli\u003eNumber of Mekugi hole: 1\u003c\/li\u003e\n\u003cli\u003eSakihaba: 18.6 mm\u003c\/li\u003e\n\u003cli\u003eSakikasane: 3.4 mm\u003c\/li\u003e\n\u003cli\u003eMotohaba: 28.3 mm\u003c\/li\u003e\n\u003cli\u003eMotokasane: 5.3 mm\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSignature: No signature\u003c\/li\u003e\n\u003cli\u003eEra: Koto\u003c\/li\u003e\n\u003cli\u003eStructure: Shinogi-zukuri, Iori-mune\u003c\/li\u003e\n\u003cli\u003eJigane: Koitame\u003c\/li\u003e\n\u003cli\u003eHamon: Suguha\u003c\/li\u003e\n\u003cli\u003eBoshi: Massugu Haitte Nakamaru ni Kaeru\u003c\/li\u003e\n\u003cli\u003eWeight: 640 g(blade only)\u003c\/li\u003e\n\u003cli\u003eNakago: Ubu\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eKoshirae: Shirasaya\u003c\/li\u003e\n\u003cli\u003eOriginal Registration No.: Oita 23871\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp\u003ePlease \u003ca title=\"Please contact us if the katana you are looking for is not listed here\" href=\"https:\/\/japanesesword.net\/pages\/antique-japanese-sword-katana-wanted-form\" target=\"_blank\"\u003econtact us\u003c\/a\u003e if the katana you are looking for is not listed here.\u003c\/p\u003e","brand":"TOZANDO KATANA SHOP","offers":[{"title":"Default Title","offer_id":53270737224043,"sku":"C001-ATQSWD-Oita23871","price":350000.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0491\/2178\/8069\/files\/ooita23871_mumei_8.jpg?v=1779436753","url":"https:\/\/japanesesword.net\/products\/authentic-koto-era-katara-for-sale-mumei-nbthk-hozon-certificatekaifu-tozando","provider":"Tozando Katana Shop","version":"1.0","type":"link"}