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| 正面描述 | Trial strike die test piece displaying all lettering in retrograde (mirror-image) relief, consistent with a direct impression from an uninverted working die or hub. The field is smooth and plain, with no central design motif. The legend reads in three lines across the centre of the coin: ENGINEERS / LONDON / J. WATT & Co., with the continuation & SOHO BIRMINGHAM arranged around the lower periphery, all lettering appearing reversed as read from the obverse face. The piece exhibits a characteristic flat, proof-like surface typical of trial and pattern strikings from the Soho Mint. |
|---|---|
| 正面文字 | Latin (retrograde) |
| 正面铭文 | ENGINEERS LONDON J. WATT & Co.. & SOHO BIRMINGHAM |
| 背面描述 | 登录 以查看详情 |
| 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 | 登录 以查看详情 |