Wakizashi - Yasumitsu - Uchigatana Koshirae - Ubu Nakago - Koto Era - Osaka 133990

¥150,000 ¥180,000

⚔️ This sword has found its new home.

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

Here is a small Wakizashi with a full package of koshirae equipped with kozuka. This piece was found in the warehouse of an old family and was just registered in September 2024.

The overall condition of the sword's preservation is in old sharpening condition, with some rust and chips present. Relatively large rust is present on the kissaki on the Sashi-omote side. Since it is black rust, it will not erode further, but it is affecting the appearance. Also, the kissaki on the Sashi-ura side has a chipped blade.


Hada is well packed with itame and shows yubashiri. Hamon has a different pattern on the Sashi-omote and Sashi-ura sides. On the Sashi-omote side, bold gunome is mixed with notare. On the Sashi-ura side, there is a mixture of kogunome and choji. The name Yasumitsu is faintly engraved on the nakago, but its authenticity is unknown.

The koshirae are all from the period and are very quaint. The kozuka in particular is also equipped with a black and dark brown shinobue style lacquering on the saya.

The price is set at a very affordable price considering the well-preserved condition of the sword. This piece is recommended for those who would like to study Japanese swords.

  • Blade length: 40.0 cm
  • Curvature: 1.0 cm
  • Number of Mekugi hole: 1
  • Sakihaba: 17.2 mm
  • Sakikasane: 4.2 mm
  • Motohaba: 24.3 mm
  • Motokasane: 4.4 mm
  • Signature: Yasumitsu(front)
  • Era: Koto
  • Structure: Shinogi-zukuri, Iori-mune
  • Jigane: Itame
  • Hamon: Gunome
  • Boshi: Yakizume
  • Nakago: Ubu
  • Weight: 270 g(blade only)/460 g(without Saya)
  • Original Registration No.: Osaka 133990

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.