Poland/ 20 Groszy/ 1973
  |
| Material: | Weight: | Diameter: | Edge: | Alignment: |
| Aluminum | 1 gr. | 20 mm. | Plain | Medal (0º) |
| Mint mark: MW - (Warsaw Mint) |
|
| Material: | Weight: | Diameter: | Edge: | Alignment: |
| Aluminum | 1 gr. | 20 mm. | Plain | Medal (0º) |
| Mint mark: MW - (Warsaw Mint) |