This is a kotsuka in shakudo nanako with gold zogan. It measures 1.35 x 9.6 cm. The nanako is very fine and well done; most of the gold remains though some has been lost to time. This kotsuka is signed Ishiguro Naotsune with a kao and the condition is excellent.










Ishiguro School
Edo
Signed
Machibori · Edo
22 pieces on the market now
The Ishiguro school was founded by Ishiguro Masatsune, born in Horeki 10 (1760), who trained under Kato Naotsune and Yanagawa Naomasa within the broader Yokoya lineage before establishing an independent atelier that would become one of the most celebrated machibori ("town carving") workshops of the late Edo period. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Masayoshi政美 | — | 30 |
| Masatsune政常 | — | 17 |
| Masaaki政明 | — | 19 |
| Koretsune是常 | — | 4 |
| Koreyoshi是美 | — | 4 |
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.
3-day return window from receipt.
This is a kotsuka in shakudo nanako with gold zogan. It measures 1.35 x 9.6 cm. The nanako is very fine and well done; most of the gold remains though some has been lost to time. This kotsuka is signed Ishiguro Naotsune with a kao and the condition is excellent.










Ishiguro School
Edo
Signed
Machibori · Edo
22 pieces on the market now
The Ishiguro school was founded by Ishiguro Masatsune, born in Horeki 10 (1760), who trained under Kato Naotsune and Yanagawa Naomasa within the broader Yokoya lineage before establishing an independent atelier that would become one of the most celebrated machibori ("town carving") workshops of the late Edo period. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Masayoshi政美 | — | 30 |
| Masatsune政常 | — | 17 |
| Masaaki政明 | — | 19 |
| Koretsune是常 | — | 4 |
| Koreyoshi是美 | — | 4 |
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.
3-day return window from receipt.