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.

556 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

Katana: Sakakura Gon-no-shi Terukane(False Signature)

¥150,000

Katana: Unsigned (Saino-o Morihiro)(NBTHK Hozon Token)

¥650,000

刀 銘 濃州関住兼常 (業物)

Price on request

刀 銘 備州長舩在光 文明十年八月日

Price on request

Antique Japanese Sword Katana Signed by Kanetoki NBTHK Tokubetsu Kicho Certificate

¥735,000

刀 兼常 Katana:Kanetsune

¥990,000

刀 (額銘)秀真(伝古備前) Katana:Hidezane

¥3,200,000

Katana [Bizen-koku-ju Osafune Sukesada] [N.B.T.H.K] Tokubetsu Hozon Token

¥2,600,000

Recently Sold

SoldOct 10, 2026

Katana : Taira Akimori (1547) (NBTHK Tokubetsu Hozon Token)

SoldOct 9, 2026

Antique Japanese Sword Katana signed by Katsuie NBTHK Tokubetsu Kicho for the blade and Koshirae

SoldOct 7, 2026

Katana, Shirasaya

SoldOct 6, 2026

無銘(宇多)

SoldOct 1, 2026

Katana: Mumei (Attributed to Sanjō Yoshinori) (NBTHK Hozon Token)

SoldSep 21, 2026

銘 南都住金房兵衛尉政次

SoldSep 18, 2026

【刀】 南都住金房兵衛尉政次 / 貳ッ胴裁断 山野加右衛門永久 寛文二壬寅三月吉辰 (特別保存刀剣)

SoldSep 15, 2026

Antique Japanese Muromachi Katana Sword, Ō-suriage Mumei with Gunome Hamon, Gold Shishi Fuchi and Red and Black Lacquer Saya