Katana - Mumei(No Signature) - NBTHK Certificate(Nakajima Rai) - Shirasaya(Sayagaki by Kunzan) Koshirae - Suriage Nakago - Koto Era

¥3,000,000

⚔️ This sword has found its new home.

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

This sword was made by Rai Kuninaga. Rai Kuninaga was a disciple of Rai Kunitoshi, who later moved to Nakajima in Settsu Province and began making swords, hence Rai Kuninaga is also known as Nakajima Rai.

This sword was made in the Nanbokucho period and O-suriage was applied to the blade to give it its current length. The blade is wide, and the koitame hada has a fine nie. The tip is also larger, and the hamon is based on a suguha, with active ko-gunome and ko-choji. The sword blade has no flaws or dents, and the surface is very clean. The characteristics of the Rai school are well represented and are of excellent workmanship.

The saya also has an appraisal sayagaki by Honma Kunzan, a Japanese sword researcher and founder, director, and president of the Society for Preservation of Japanese Art Swords. Kunzan certified the sword as the authentic work of Nakajima Rai in March 1987.

The Society for Preservation of Japanese Art Swords has also recognized this sword as an important sword, and a certificate of authenticity accompanies the sword. We highly recommend this masterpiece as a family heirloom.

  • Blade length: 68.4 cm
  • Curvature: 1.8 cm
  • Number of Mekugi hole: 3
  • Sakihaba: 21.0 mm
  • Motohaba: 31.0 mm
  • Signature: No signature
  • Era: Koto(Nanboucho era)
  • Structure: Shinogi-zukuri, Iori-mune
  • Jigane: Ko-itame
  • Hamon: Suguha with Ko-choji, Ko-gunome
  • Boshi: Hakikake Komaru ni Kaeru
  • Nakago: Suriage
  • Weight: 659 g(blade only)

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.