This is an Edo period tsuba from the Ko-Shoami school. It features a Shiho Kan Sukashi design, with an iron base and a mokko (melon) shape. The tsuba has a good temper and a simple, rustic appearance typical of Ko-Shoami works.



Ko-Shoami School
Edo
Iron-tsuba
The Ko-Shōami (Old Shōami) represent a collective of specialist tsuba makers active in Kyōto from the middle through the late Muromachi period, extending into the Momoyama era. The prevailing scholarly view holds that these artisans originally worked as general tōsōgu craftsmen before becoming specialized tsuba makers. Unlike other major schools of the period, Ko-Shōami works lack widely celebrated individual masterpieces, and attributions typically reference the group name rather than specific hands. Rare examples of kodōgu attributed to the school—such as menuki depicting deer in a pine grove with traces of uttori-iroe—suggest a broader early production range, yet such pieces remain exceptional within the known corpus. The characteristic Ko-Shōami technical approach centers on piercing iron plates with bold openwork (ji-sukashi, nikubori-sukashi) and enriching the design through nunome-zōgan in gold, silver, shakudo, and brass. Typical works employ well-forged iron with polished surfaces (migaki-ji) or textured grounds (ishime-ji), often finished with hizashi-yasuri (sun-ray file marks) embellished with shakudo inlay.
Compositions favor geometric motifs—large square seals (kaku-in), net patterns (ami-me), mulberry leaves pierced with seaweed and karakusa arabesques—rendered in a manner that balances daring openwork with controlled inlay. Rims typically receive gold or silver nunome-zōgan in rope (nawame) or arabesque patterns, tightening the overall composition. " Ko-Shōami tsuba are distinguished by their simple, clean aesthetic and well-proportioned circular forms (maru-gata), often with angular or raised rims (kaku-mimi, dote-mimi). The firmness of their nunome-zōgan execution and the quality of their forged iron plate establish these works as representative examples of mid-to-late Muromachi tsuba craftsmanship. Though lacking the lineage documentation of signed schools, Ko-Shōami pieces were esteemed enough to enter prestigious collections, including the Higo Hosokawa family. The school's influence lies in its refinement of openwork and inlay techniques that would inform later Kyōto traditions. Learn more →
We could not find an authenticity certificate on the seller’s listing. Japanese swords and fittings are normally papered by the NBTHK (or the NTHK). Without one, the attribution is the seller’s own assessment and has not been independently verified — treat it with caution and ask the dealer about certification before buying.
For one-of-a-kind items such as swords, sword fittings, and antiques, please contact us about a return within 3 days of the item's arrival and ship it back within 8 days. Refunds are issued the same day the returned item arrives.
This is an Edo period tsuba from the Ko-Shoami school. It features a Shiho Kan Sukashi design, with an iron base and a mokko (melon) shape. The tsuba has a good temper and a simple, rustic appearance typical of Ko-Shoami works.



Ko-Shoami School
Edo
Iron-tsuba
The Ko-Shōami (Old Shōami) represent a collective of specialist tsuba makers active in Kyōto from the middle through the late Muromachi period, extending into the Momoyama era. The prevailing scholarly view holds that these artisans originally worked as general tōsōgu craftsmen before becoming specialized tsuba makers. Unlike other major schools of the period, Ko-Shōami works lack widely celebrated individual masterpieces, and attributions typically reference the group name rather than specific hands. Rare examples of kodōgu attributed to the school—such as menuki depicting deer in a pine grove with traces of uttori-iroe—suggest a broader early production range, yet such pieces remain exceptional within the known corpus. The characteristic Ko-Shōami technical approach centers on piercing iron plates with bold openwork (ji-sukashi, nikubori-sukashi) and enriching the design through nunome-zōgan in gold, silver, shakudo, and brass. Typical works employ well-forged iron with polished surfaces (migaki-ji) or textured grounds (ishime-ji), often finished with hizashi-yasuri (sun-ray file marks) embellished with shakudo inlay.
Compositions favor geometric motifs—large square seals (kaku-in), net patterns (ami-me), mulberry leaves pierced with seaweed and karakusa arabesques—rendered in a manner that balances daring openwork with controlled inlay. Rims typically receive gold or silver nunome-zōgan in rope (nawame) or arabesque patterns, tightening the overall composition. " Ko-Shōami tsuba are distinguished by their simple, clean aesthetic and well-proportioned circular forms (maru-gata), often with angular or raised rims (kaku-mimi, dote-mimi). The firmness of their nunome-zōgan execution and the quality of their forged iron plate establish these works as representative examples of mid-to-late Muromachi tsuba craftsmanship. Though lacking the lineage documentation of signed schools, Ko-Shōami pieces were esteemed enough to enter prestigious collections, including the Higo Hosokawa family. The school's influence lies in its refinement of openwork and inlay techniques that would inform later Kyōto traditions. Learn more →
We could not find an authenticity certificate on the seller’s listing. Japanese swords and fittings are normally papered by the NBTHK (or the NTHK). Without one, the attribution is the seller’s own assessment and has not been independently verified — treat it with caution and ask the dealer about certification before buying.
For one-of-a-kind items such as swords, sword fittings, and antiques, please contact us about a return within 3 days of the item's arrival and ship it back within 8 days. Refunds are issued the same day the returned item arrives.