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| 正面描述 | Central device features the crowned Polish eagle with wings displayed, rendered in the People's Republic style with a plain crown. The eagle is depicted facing forward with detailed feathering on the wings and body. The circular legend 'POLSKA RZECZPOSPOLITA LUDOWA' runs along the upper periphery, while the denomination 'ZŁ. 10 ZŁ.' appears in the lower field. The word 'PRÓBA' (trial) is incuse in the lower left field, identifying this as a pattern strike. |
|---|---|
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| 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 | 登录 以查看详情 |
| 边缘 | Reeded |
| 铸币厂 | 登录 以查看详情 |
| 铸造量 | 登录 以查看详情 |
| 附加信息 |
Poland's 1964 commemorative program marked the 600th anniversary of the Jagiellonian University in Kraków, founded by Kazimierz III in 1364 — one of the oldest universities in Central Europe. This trial strike, with its legends incuse rather than raised, represents a documented die test from that production run, catalogued separately by Fischer and Parchimowicz precisely because the incuse variant was never approved for circulation release.
NBP trial pieces from this decade are genuinely scarce; most were retained internally or destroyed after evaluation.