Yukio Nibu – One-Off Custom Knife R8-12 Reclaimed Mantetsu Sword Fragment (1940)

Specifications

Blade Length: 149 mm
Overall Length: 363 mm (393 mm with sheath)
Blade Thickness: 6.7 mm
Weight: 340 g

Blade Material: Carbon Steel (reclaimed Japanese sword fragment)

Handle: Integral construction utilizing the original nakago (tang) section of the sword

Sheath: Magnolia wood with lacquer finish

Notes

• Military sword inscription:
“Koa Isshin – Mantetsu Made”

• Inscription date:
Autumn of Showa 15 (1940)

• Originally produced by the South Manchuria Railway Company (Mantetsu)

• Hamon: Tight nioiguchi suguha (straight temper line)

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Yukio Nibu
Japanese knife artist known for reforging traditional Japanese sword steel into contemporary custom knives.

His work emphasizes authenticity, visible forging character, and the preservation of material history, blending the spirit of classical Japanese swordsmithing with modern knife design.

His extremely limited production makes each piece highly collectible.

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Important Notice

The listed price applies to the knife only. Any other tools or accessories shown in photos are not included.

This product features an extremely sharp blade. Please handle with care.

Sale to minors is strictly prohibited.

Buyers are responsible for complying with all local laws and regulations regarding the possession, carrying, and use of knives.

When not in use, please store the knife safely and keep it out of reach of children.