Tanto - Kiyomitsu - NBTHK Hozon Certificate - Shirasaya Koshirae(with Sayagaki) - Ubu Nakago - Koto Era - Tokyo 132585

¥598,000

⚔️ This sword has found its new home.

This blade has been acquired. Discover other exceptional swords currently available in our collection.

Kiyomitsu's tanto from the prestigious Bizen Osafune has arrived. 

Kiyomitsu's tanto are rarely found on the market, making this a very rare item. The blade is in excellent condition, well polished, and almost flawless. The jigane has a good mix of mokume and itame, and utsuri can also be seen. The hamon is a narrow sugu-ha with a niode-deki pattern, characteristic of works from the Koto period. The nakago is inscribed with “Osafune Kiyomitsu, who lives in the land of Bizen” on the sashi-omote side and “Genki 2nd year, 2nd month” on the sashi-ura side, indicating that this work was created in the 2nd year of Genki, or 1571. The year 1571 was significant in the Warring States period, marked by events such as Oda Nobunaga's burning of Mount Hiei and Takeda Shingen's invasion of Mikawa and Totomi.

In December 2023, the Society for the Preservation of Japanese Art Swords issued a certificate of authenticity for this work as a genuine Kiyomitsu sword and as a piece of high value for preservation for future generations. It also comes with a certificate from the now-defunct Kantei Club (Appraisal Club), which includes the seals of famous sword appraisers. The scabbard is shirsaya, and it has sayagaki inscribed with “Magoemon no Jo, Bizen no Kuni Ju Osafune Kiyomitsu, Genki, Ninen, Nigatsu Bi.”

This dagger which possesses two appraisal certificates, rarely appears on the market, so you are very lucky to have found it here; therefore, we highly recommend purchasing it immediately.

  • Blade length: 26.4 cm
  • Curvature: 0.0 cm
  • Number of Mekugi hole: 1
  • Motohaba: 23.3 mm
  • Motokasane: 6.5mm
  • Signature: Bizen no Kuni ju Osafune Kiyomitsu(front), Genki Ninen Nigatsu-bi(back)
  • Era: Koto
  • Structure: Hira-zukuri, Iori-mune
  • Jigane: Itame with Mokume mixed in
  • Hamon: Hoso-suguha
  • Boshi: Massugu Haitte Nakamaru ni Kaeru
  • Weight: 200 g(blade only)
  • Nakago: Ubu
  • Koshirae: Shirasaya with Sayagaki
  • Original Registration No.: Tokyo 132585

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.