Tachi - Yasuhiro - NBTHK Juyo Certificate - Shirasaya - Suriage Nakago - Koto Era - Okayama 78912

¥8,800,000

A tachi sword from the Osafune school, forged during the Kamakura period and certified as Juyo by the Society for the Preservation of Japanese Art Swords, has newly arrived.

The overall preservation of the blade is remarkably sound, hardly believable for a Kamakura-period piece, befitting its Juyo certification. The jigane clearly shows itame mixed with mokume and jinie adheres well, displaying the characteristic utsu-ri pattern of Bizen swords. The hamon features suguha with some Ko-gunome mixed in, showing sunagashi and kinsuji. The nakago is inscribed with the name Yasuhiro.

Yasuhiro was a swordsmith active in the late Kamakura period, belonging to the Osafune school; his extant works are extremely rare. The shirasaya features a sayagaki by Kunzan. It reads: “Fukuoka Ichimonji Yasuhiro / Blade Length: 2 shaku 2 sun 6 bu / August 1987 / At Kugayama-bo / Kunzan.”

This is a rare opportunity to acquire a signed tachi from the Kamakura period, one of very few extant examples, and a highly valuable work by Yasuhiro, complete with a kunzan-style saya-gaki, to become your family treasure.

  • Blade length: 68.4 cm
  • Curvature: 2.5 cm
  • Number of Mekugi hole: 2
  • Sakihaba: 17.6 mm
  • Sakikasane: 3.2 mm
  • Motohaba: 28.4 mm
  • Motokasane: 5.6 mm
  • Signature: Yasuhiro(front)
  • Era: Koto
  • Structure: Shinogi-zukuri, Iori-mune
  • Jigane: Itame with Mokume mixed in
  • Hamon: Suguha
  • Boshi: Massugu Haitte Komaru ni Kaeru
  • Weight: 700 g(blade only)
  • Nakago: Suriage
  • Koshirae: Shirasaya
  • Original Registration No.: Okayama 78912

Please contact us if the katana you are looking for is not listed here.

Voices of Authentic Craftsmanship

The quality of the blade and the simplicity of the shirasaya mount truly reflect traditional Japanese mastery. A beautiful and meaningful addition to my collection.

James Holloway

The natural wood finish and clean design highlight the beauty of the blade perfectly. Exactly what I was looking for.

Daniel Fischer,

Rooted in Centuries of Craftsmanship

Every blade reflects generations of knowledge, discipline, and precision passed down through traditional Japanese swordmaking. From the forging of steel to the final finishing touches, each piece is shaped with patience, mastery, and deep respect for heritage.

Authenticity in Every Detail

From carefully selected materials to the refined finishing of every surface, each sword is crafted and presented with uncompromising attention to detail. Our commitment to authenticity ensures every piece reflects true tradition, lasting quality, and enduring cultural value.

Precision Shaped by Tradition

Designed with balance, simplicity, and purpose, our blades embody the harmony between refined form and skilled craftsmanship. Each sword represents a thoughtful union of strength, elegance, and the timeless discipline of Japanese artisans.

Forged in Tradition. Defined by Precision.

Forged in Tradition. Defined by Precision.

Discover authentic Japanese blades crafted with discipline, balance, and generations of timeless craftsmanship.