Katana - Mumei(No Signature) - NBTHK Hozon Certificate(Shimohara) - Uchigatana Koshirae - O-suriage Nakago - Koto Era - Aomori 17478

¥720,000

We are pleased to present a unique O-suriage katana with a certificate of authenticity, partially filled in nakago.

The sword is very well preserved with zero defects such as flaws, rust, dents, or chips. The jigane is called jorinmoku, which is a large mokume that is very active and looks like a whirlpool. Jorinmoku is a major characteristic of Shimohara swordsmithing. Also, the gunome-toned midare-utsuri is clearly visible. Hamon is a thin suguha, and hataraki such as sunagashi can be seen.

There are three holes for mekugi, but two of the holes are blocked by partially filled nakago. It is estimated that the sword blade was originally about 75 cm long, but the O-suriage has made it the current length. Although it is an unsigned katana, in December 2024 the Society for Preservation of Japanese Art Swords issued a Hozon certificate of authenticity for this piece, recognizing it as having been made in Shimohara and as being of high value for preservation for future generations.

The Shimohara were a group of swordsmiths who flourished in the Muromachi period (1336-1573) under the patronage of the Hojo clan, and who supported the Hojo clan's military advance into the Kanto region and continued to make swords until the end of the Edo era.

The Tsuka is beautifully wrapped with silk cord in a very labor-intensive Jabara style. The scabbard is lacquered in dark-red-colored Ishime style, accentuating the katana's presence.

This piece is a fine example of the spirit of the Kanto samurai and is a must-have addition to your Japanese sword collection. Take action now!

  • Blade length: 65.0 cm
  • Curvature: 1.4 cm
  • Number of Mekugi hole: 3(2 are filled)
  • Sakihaba: 20.8 mm
  • Sakikasane: 4.0 mm
  • Motohaba: 27.8 mm
  • Motokasane: 5.9 mm
  • Signature: No signature
  • Era: Koto
  • Structure: Shinogi-zukuri, Iori-mune
  • Jigane: Jorinmoku
  • Hamon: Suguha
  • Boshi: Massugu Haitte O-maru ni Kaeru
  • Weight: 610 g(blade only)/860g(without Saya)
  • Nakago: O-suriage
  • Koshirae: Berge silk wrapped Tsuka with Shu-ishime-lacquered Saya/Shirasaya
  • Original Registration No.: Aomori 17478

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.