[Preserved Sword] Mumei (Attributed to Kaifu) Katana – NBTHK Certificate Included

$5,200.00

Though unsigned (mumei), this katana is certified by the NBTHK (The Society for the Preservation of Japanese Art Swords) as a work by the Kaifu school, one of the representative swordsmith groups from Awa Province (present-day Tokushima Prefecture).

The Kaifu tradition is known for balanced craftsmanship, stable forging patterns, and blades suited for both martial and aesthetic value. This sword showcases those qualities, with a graceful curvature and refined geometry. The presence of four mekugi-ana (peg holes), two of which have been filled, indicates that the sword was cherished and preserved over generations.

It is a highly valuable piece, not only for appreciation but also as a preserved and authenticated Japanese sword with historical significance.

Though unsigned (mumei), this katana is certified by the NBTHK (The Society for the Preservation of Japanese Art Swords) as a work by the Kaifu school, one of the representative swordsmith groups from Awa Province (present-day Tokushima Prefecture).

The Kaifu tradition is known for balanced craftsmanship, stable forging patterns, and blades suited for both martial and aesthetic value. This sword showcases those qualities, with a graceful curvature and refined geometry. The presence of four mekugi-ana (peg holes), two of which have been filled, indicates that the sword was cherished and preserved over generations.

It is a highly valuable piece, not only for appreciation but also as a preserved and authenticated Japanese sword with historical significance.

Specifications

  • Blade Length: approx. 65 cm (2 shaku 1 sun 5 bu)

  • Width at Base (Moto-haba): 30.1 mm

  • Thickness at Base (Moto-kasane): 9.1 mm

  • Curvature (Sori): 1.0 cm

  • Width at Tip (Saki-haba): 21.0 mm

  • Thickness at Tip (Saki-kasane): 5.6 mm

  • Mekugi-ana (peg holes): 4 (2 filled)

  • Weight (Blade only): 734 g

  • Weight (with fittings): 919 g

⚠ Notes (For International Shipping) – English Version

  • This is a genuine Japanese sword (with official registration certificate). To ship it internationally, we are required to apply for an export permit from the Agency for Cultural Affairs of Japan. We will handle all necessary procedures on your behalf.

  • The export process usually takes 2 to 4 weeks. Please place your order with sufficient time in mind.

  • Depending on your country, import duties, taxes, or local regulations may apply. We recommend checking with your local customs office before ordering.

  • We cannot ship to countries or regions where the import of Japanese swords is prohibited. Thank you for your understanding.

  • All items are carefully packed in secure, custom packaging and shipped via insured international courier for safe delivery.