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| Issuer | Mint of Poland (Mennica Polska) |
|---|---|
| Year | 1979 |
| Type | Non-circulating coin |
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| Obverse description | The Polish state eagle displayed in the center of the field, rendered in a stylised heraldic manner with wings spread and head turned to the right. The date 1979 is divided on either side of the eagle, with the mint mark below. The denomination 100 ZŁ appears in large numerals across the lower portion of the field, flanked by the abbreviation ZŁ on each side. The circular legend POLSKA RZECZPOSPOLITA LUDOWA runs along the periphery in Latin script. |
|---|---|
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| Obverse lettering | POLSKA RZECZPOSPOLITA LUDOWA 19 79 mw ZŁ 100 ZŁ |
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| Additional information |
Zamenhof, the Warsaw ophthalmologist who invented Esperanto in 1887, was commemorated on this issue during a period when the Polish government found his internationalist ideals politically convenient — the universal language movement had genuine traction in socialist bloc cultural diplomacy. The coin appeared in the same year Poland was deepening its engagement with international Esperanto congresses, where the language retained an unusually strong following among Eastern European intellectuals.
The .625 fineness is characteristic of Polish commemorative silver from this decade, a deliberate step down from the .999 and .750 standards used earlier in the series.