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| 正面描述 | Central design depicts a large medieval Hanseatic cog sailing to the right, rendered in fine relief with detailed rigging, sails, and hull. To the left of the ship appears the Hamburg city arms — a white castle on a red shield — set upon a raised plinth. The date 1907 is inscribed in the lower exergue. A beaded inner border frames the central design, with the circular legend arranged around the periphery in Latin capitals. |
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| 正面文字 | 登录 以查看详情 |
| 正面铭文 | 登录 以查看详情 |
| 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 | DEVTSCHES · REICH · ZWANZIG · MARK · (Translation: German Empire Twenty Mark) |
| 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 coins from Hamburg's municipal mint are scarce precisely because the city lost its independent coinage rights under the imperial monetary unification of 1873 — by 1907, Hamburg was no longer striking circulating gold 20 Mark pieces on its own authority, making the purpose of this copper trial piece somewhat ambiguous. Whether it was produced to test dies, satisfy a collector order, or document a proposed issue remains unresolved in the literature.
The copper composition and weight diverge substantially from the gold standard, confirming this was never intended for circulation.