Suishinshi Masahide Wakizashi (1816). A Rare Masterpiece with Edo Period Tameshigiri

A Rare Masterpiece by the Future Nidai Suishinshi Masahide with Official Edo Period Tameshigiri Test

Some Japanese swords are admired for their beauty. Others are treasured for their history. On very rare occasions, a blade possesses both qualities to an extraordinary degree. This remarkable wakizashi by Suikanshi Sadahide, the future Nidai Suishinshi Masahide, belongs firmly within that exceptional category.

Certified NBTHK Tokubetsu Hozon, signed and dated in 1816, and bearing an authentic tameshigiri (test cutting) inscription by the renowned Yamada Gengorō Yoshiyasu from 1819, this sword is not merely an outstanding work of art. It is a documented piece of Edo period history.

Forged Before the Legendary Name

The blade was forged during the eighth month of Bunka 13 (1816) and signed: 水寒子貞秀, Suikanshi Sadahide.

Only two years later, in 1818, Sadahide inherited the famous name Suishinshi Masahide, becoming the second generation master of one of the most influential swordsmith families of the Shinshintō period.

Because of this, the sword captures a fascinating moment in Japanese sword history. It represents the final years before the succession, when the future Nidai Masahide had already mastered his father's revolutionary techniques while still signing with his earlier name.

Collectors regard blades from this short transitional period as particularly desirable because they combine absolute technical maturity with exceptional historical significance.

The Legacy of Suishinshi Masahide

Few swordsmiths changed Japanese swordmaking as profoundly as Shodai Suishinshi Masahide.

Working during the late eighteenth century, he believed that contemporary swords had become overly decorative and lacked the strength and elegance of the great Kamakura masterpieces. Through extensive study of ancient blades, he initiated what became known as the Shinshintō Revival, inspiring an entire generation of smiths to return to classical forging techniques.

His influence cannot be overstated. Many of the greatest nineteenth century swordsmiths either trained directly under him or followed his teachings. His son inherited not only his father's name but also his artistic philosophy. This wakizashi demonstrates that inheritance perfectly.

A Sword Proven in Steel

Three years after its completion, the blade underwent an official tameshigiri examination. The inscription records: 稲御土壇搦, a demanding cutting test performed on the 27th day of the twelfth month of Bunsei 2 (1819).

The examiner was Yamada Gengorō Yoshiyasu, a distinguished member of the famous Yamada Asaemon family. For generations, the Yamada family served as the Tokugawa Shogunate's official sword testers. Their responsibility was to evaluate the cutting ability of Japan's finest swords using carefully controlled methods. Their inscriptions became permanent guarantees of performance and were respected throughout the samurai class.

Remarkably, Yoshiyasu passed away only one year after testing this blade, making this inscription one of the final surviving examples of his work.

Having both the swordsmith's signature and the official Yamada test inscription preserved on the original tang makes this wakizashi exceptionally rare.

The Dragon Horimono

Perhaps the first feature that captures the eye is the spectacular dragon horimono carved into the blade. Stretching gracefully through swirling clouds, the dragon displays extraordinary depth and movement. Every individual scale, claw and flowing whisker has been executed with remarkable precision, while the surrounding clouds create a dramatic sense of motion.

Unlike many decorative carvings added later in a blade's life, this horimono forms a harmonious part of the sword's overall artistic composition. The dragon, long regarded as a symbol of wisdom, protection and divine power in Japanese culture, appears to emerge naturally from the polished steel itself.

Combined with the brilliant mirror polish, the carving creates an extraordinary play of light that changes from every viewing angle. It is a masterpiece of metal sculpture as much as a sword.

Beauty Beyond the Horimono

The artistry extends far beyond the dragon. The finely forged ko itame jihada reveals a beautifully refined grain with visible utsuri, a feature rarely encountered in Shinshintō blades and evidence of exceptional forging control.

The active tobiyaki hamon further demonstrates Sadahide's technical confidence. Islands of brilliant hardened steel rise dramatically beyond the main temper line, producing a vibrant and energetic appearance unlike the quiet restraint often seen in many Edo period swords. Together, the steel, hamon and horimono create an exceptionally balanced work of art.

A Magnificent Koshirae

The wakizashi is housed in an elegant Edo period koshirae of exceptional quality. The deep translucent vermilion lacquer saya contrasts beautifully with the silver mounted fittings and the richly wrapped green tsuka. Every component reflects refined craftsmanship and complements the blade without overshadowing it. Together, blade and mounting form a complete work of Japanese decorative art.

NBTHK Tokubetsu Hozon

This wakizashi has been awarded NBTHK Tokubetsu Hozon, confirming its authenticity, quality and historical importance. The sword also retains its long standing Japanese provenance through its Hiroshima Prefecture registration.

For collectors, this represents the ideal combination: signed and dated by Suikanshi Sadahide, forged immediately before becoming Nidai Suishinshi Masahide, official Edo period Yamada Asaemon tameshigiri inscription, outstanding dragon horimono, fine Edo period koshirae, and NBTHK Tokubetsu Hozon certification.

A Museum Quality Masterpiece

This is far more than a beautiful Japanese sword. It is the meeting point of two of Edo Japan's greatest traditions: the genius of the Suishinshi school and the authority of the Yamada Asaemon sword testing family. Every signature, every inscription and every detail tells part of its remarkable story.

More than two centuries after it was forged, this extraordinary wakizashi survives in magnificent condition as both a work of art and an historical document. For the discerning collector, opportunities to acquire a sword of this calibre are exceptionally rare. View this wakizashi in our collection at /shop/suishinshi-masahide-wakizashi-1816. A museum quality masterpiece that embodies the artistry, history and enduring spirit of the Japanese sword.