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Iai-do , Nihon Antique Gallery, Goronyudo Masamune, Authentic High-Grade Iai-do

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Product Details

Iaido Authentic High-Grade Iaito
Nihon Antique Gallery
Goro Nyudo Masamune - Daito (Long )

[Set Contents]
- Main Body
- Saya (Scabbard)

This is an iaito, so it does not have a sharpened edge and cannot cut.
It is a safe martial arts tool that does not require registration.

This is a top-quality iaito made by Nihon Antique Gallery.
Original retail price at release: Approximately Β₯160,000 for the Daisho (long and short ) set.

This is a high-grade Masamune iaito made by Niagi.
This is a later production model, characterized by its kakinagashi groove and polished , designed with display in mind.

As it is constructed as an iaito, it can be used without issue for kata practice or suburi (swinging practice). It produces a light whistling sound when swung due to the groove.
*Please note that it is not durable enough for sparring practice. Also, if used for practice, please ensure regular maintenance.

The has some minor scuff marks and signs of age, but it is in relatively clean condition. There is no looseness in the koiguchi (mouth of the scabbard).
Please confirm the condition in the photos and make your purchase with satisfaction.

Nihon Antique Gallery has ceased iaito production, making this a rare piece.
The Masamune , which was Niagi's flagship model, is particularly beautiful in its hamon (temper line) and koshirae (mountings), offering a sense of satisfaction just by owning it.

Please consider this opportunity.
*As this is a bargain listing, please refrain from significant price reductions.

[Goro Nyudo Masamune Specifications]
: Special alloy, ancient style iaito, thin finish
Kakinagashi groove
Tsuka-maki (Handle Wrap): Genuine ray skin with pure cotton Rikyucha-colored ito (cord) twisted wrap
Menuki (Handle Ornaments): Warrior equipment motif (brass)
Koshirae Fittings: Kashira (pommel cap), Fuchi (collar), Men-tsubu and Yorosode (armor sleeve) motif (copper)
Tsuba (Guard): Plum and bamboo motif, gold inlay iron, hand-finished
Saya (Scabbard): Black lacquer, ito-maki style finish

- Masamune Daito (Long )
Overall Length: Approx. 101 cm
Length: Approx. 71 cm (excluding habaki)
Overall Weight: Approx. 970g
Weight without Saya: Approx. 772g
Tsuka (Handle) Length: Approx. 24 cm
Sori (Curvature): Approx. 1.8 cm

Category
Iaido
Condition
No noticeable scratches or marks
Shipping
Included in price (by seller)
From
Unspecified

Daily Cleaning: Use a soft brush or damp cloth to gently wipe away dirt. Avoid harsh chemicals. For mesh areas, use diluted mild detergent and a soft brush.

Drying: Air dry in a cool, shaded place after cleaning. Avoid direct sunlight or high heat, which can cause fading and glue deterioration.

Storage: Stuff with paper to maintain shape when not in use. Store in a dry, ventilated area to prevent mold. Rotate between multiple pairs to extend lifespan.

Usage Notes: Designed for basketball. Not recommended for hiking, long-distance running, or other specialized sports where different performance features are required.

Customer Reviews (13)

4.5
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Based on 326 reviews
5 stars
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4 stars
10%
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M
User2004560
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2026-11-09

I’m happy with the performance and build quality.