Sadayoshi貞吉
Osaka Gassan school · Settsu province · active 1830-1860
Hawley reference SAD850Smith record
| Active period | 1830-1860 |
| Province | Settsu |
| School / tradition | Osaka Gassan |
| Teacher | Masahide |
| Hawley ID | SAD850 |
Recorded signatures (mei)
月山貞吉作gassan sadayoshi saku
攝津浪華住月山貞吉造settsu naniwa ju gassan sadayoshi tsukuru
攝陽住月山貞吉作setsuyō ju gassan sadayoshi saku
於伊州廣山秀澄宅月山弥八郎貞吉鍛之oite ishū hiroyama hidezumi-taku gassan yahachirō sadayoshi kitau kore
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About these ratings
Hawley points come from W. M. Hawley's Japanese Swordsmiths (1981), the standard Western reference cataloguing over 12,000 smiths. Most recorded smiths sit at 15–20 points; only a few dozen legendary masters exceed 150.
Fujishiro grades (from Nihon Tōkō Jiten) rank workmanship from Chū saku up to Sai-jō saku, while the Tōkō Taikan valuation (Tokuno, 1977) reflects each smith's relative market standing in yen. Explore more smiths in the searchable swordsmith index.
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