This newly arrived hidden dagger is a unique piece featuring a Toppei-style Western-inspired koshirae and a blade crafted in the Unokubi style in Koto era.
The blade exhibits overall antique polish, presenting a clean finish with only a few minor scuffs; it shows no flaws such as forging defects or rust. The jigane displays a well-kneaded itame grain pattern with visible chigai. The hamon is a slightly deeper nioi-kuchi suguha.
The unokubi structure further specializes the blade for thrusting. Both sides of the blade are carved with Sanskrit characters and grooves The Sanskrit characters depict Dainichi Nyorai (Mahavairocana Buddha) and Fudo Myo-o (Acala). This suggests it was likely a protective amulet blade.
The nakago is inscribed with “Soshu Hirotsugu.” The first Hirotsugu, grandson of the renowned Soshu master Sadamune, rose to prominence during the Nanbokucho period and continued to be active for several generations through the Sue-koto era. During the Sengoku period, the Tokai region became a particularly fierce battleground, leading to heavy consumption of Soshu works. Consequently, very few survive today, making them highly sought after.
The koshirae features a Toppei-style scabbard with a pointed tip. The tsuka-maki is not made using traditional methods but is riveted, giving it a distinctly Western feel. Additionally, a brass plate protrudes from the scabbard, functioning as a stopper secured through the tsuba's hole to prevent the scabbard from accidentally slipping off.
Considering the period when Hirotsugu was active, a different koshirae would have been fitted, but it is presumed this style was newly commissioned during the Bakumatsu period.
In December 2021, the Society for the Preservation of Japanese Art Swords authenticated this tanto as a genuine work by Hirotsugu and issued a Hozon certificate.
It is an exceptional piece highly recommended for anyone seeking a truly unique Japanese sword.
Please contact us if the katana you are looking for is not listed here.
Orders are typically processed and shipped within 2–5 business days.
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.
The natural wood finish and clean design highlight the beauty of the blade perfectly. Exactly what I was looking for.
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.
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.
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.
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