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20 Groszy
| Issuer | Mint of Poland (Mennica Polska) |
|---|---|
| Year | 2019-2023 |
| Type | Standard circulation coin |
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| Composition | Log in to see details |
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| Obverse description | Log in to see details |
|---|---|
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| Obverse lettering | mw RZECZPOSPOLITA POLSKA 2020 |
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| Reverse script | Latin |
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| Additional information |
Poland switched its circulation coinage to steel-core planchets in stages beginning around 2013, driven primarily by rising copper and nickel commodity prices making the older solid copper-nickel pieces increasingly expensive to produce. The 20 groszy was among the later denominations converted, with the magnetic plated-steel version entering production for the 2019 dated issues. Vending machine operators and transit systems required recalibration of magnetic sensors across the country following the changeover.