Poland

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| Number | C# 81 |
|---|---|
| Country | Poland |
| Period | Duchy of Warsaw (1807 - 1815) |
| Ruler | Frederick Augustus I |
| Currency | Polish złoty (pre-decimal) |
| Coin type | Circulation coins |
| Denomination | 1 grosz |
| Year | 1810 - 1814 |
| Edge type | Smooth |
| Shape | Round |
| Alignment | Medal (0°) |
| Composition | Copper |
| Weight (g) | 1.7 |
| Diameter (mm) | 21 |
| Thickness (mm) | 1.1 |
![]() | Coat of arms Crowns Wreath |
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![]() | Legend |
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| Year | Mark | Mintage | Rarity | Value, USD | ||
|---|---|---|---|---|---|---|
| UNC | BU | Proof | ||||
| 1814 | IB | 3.072.000 | - | - | - | $ 13.03 |
| 1812 | IB | 6.377.000 | - | - | ||
| 1811 | IB | + | - | - | ||
| 1811 | IS | 4.357.763 | - | - | ||
| 1810 | IS | 742.285 | - | - | ||
