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| 正面描述 | 登录 以查看详情 |
|---|---|
| 正面文字 | Chinese (traditional, regular script) |
| 正面铭文 | 登录 以查看详情 |
| 背面描述 | The reverse displays a radiant sunburst at the centre of the field, surrounded by a circular arrangement of twelve alternating paulownia (桐) crests and chrysanthemum (菊) imperial seals, presented in a bold, heraldic composition emblematic of the Meiji imperial tradition. The devices are evenly spaced and rendered in crisp relief, conveying a formal, ceremonial character. No legend or inscription is present; the design is contained within a plain raised rim. |
| 背面文字 | 登录 以查看详情 |
| 背面铭文 | 登录 以查看详情 |
| 边缘 | 登录 以查看详情 |
| 铸币厂 | 登录 以查看详情 |
| 铸造量 | 登录 以查看详情 |
| 附加信息 |
Pattern coinage from the Osaka Mint's earliest operational years, when Japanese authorities were still negotiating the balance between Western minting technology — imported wholesale from abroad, including machinery and foreign advisors — and the denominations appropriate for domestic commerce. The half-yen copper pattern was never adopted; the silver half-yen entered circulation instead, leaving copper trial pieces from this period as production artifacts of an unresolved monetary debate rather than a failed coin.