Koto Katana for Sale
Koto ("old sword") katana date from the earliest period of Japanese swordmaking through 1596, encompassing the golden age of the craft. This era produced the legendary Five Traditions (Gokaden) — Bizen, Soshu, Yamashiro, Yamato, and Mino — and the most celebrated smiths in history: Masamune, Sadamune, Go Yoshihiro, and Osafune Nagamitsu. Koto katana are distinguished by their use of locally smelted tamahagane steel, resulting in characteristic jigane patterns that cannot be replicated. They represent the most historically significant and collectible category of Japanese long swords.
46 items currently available from trusted dealers worldwide.
Programmatic access: range and multi-facet queries (by price, blade length, certification, and more) are available as JSON at /api/public/listings. See /llms.txt for the full schema and filters.
Recently Listed

Authentic Koto Era Katara for Sale - Mumei, NBTHK Hozon Certificate(Owariseki) | Tozando
¥840,000

Koto katana with Murai Saburōsaemon cutting test
Price on request

Katana:Mumei(Unsigned) (Kai-Mihara). (NBTHK Hozon Token)
¥500,000

刀 古三原(無銘) Katana:Ko Mihara(Mumei)
¥2,900,000

Authentic Koto Era Katara for Sale - Mumei, NBTHK Hozon Certificate(Mihara) | Tozando
¥450,000

三原正信 刀 特別保存刀剣
¥1,200,000

Authentic Koto Era Katara for Sale - Mumei, NBTHK Hozon Certificate(Toshinaga) | Tozando
¥5,100

無銘(古宇多)特別保存刀剣鑑定書 大前田家伝来 Katana(No signature)(Kouta) 品番:KA022
¥1,300,000
Recently Sold

(03-1328)古刀 正廣作 一尺三寸七分 白鞘入

Bitchu Aoe katana

Antique Japanese Sword Koto Katana Deep Curvatuture 64.5cm

無銘(寿命) (美濃)(東山道)

無銘(同田貫) (肥後)(西海道)

Katana: Mumei(Rai Kunitoshi) with golden inscription by Hon'ami Mitsutada (25th NBTHK Tokubetsu Juyo Token)

備前國住長船七郎衛門尉行包 天正十二年二月日 - Bizen no kuni ju Osafune Shichiroemon no joi Yukikane - 2-1827
