| Added by |
 Maciej Pasztor
|
| Face value | 20 groszy |
| Catalog code (Michel) | 1719 |
| Catalog code (Scott) | 1453 |
| Catalog code | Polish Stamps Catalog 1571 |
| Series | Forest birds |
| Place in series | 2 |
| Stamp colour | Multicolored |
| Stamp use | Commemorative stamp |
| Print run | 5,456,020 |
| Issue date | 17/11/1966 |
| Designer | Tadeusz Michaluk Grav: Eugeniusz Tirdiszek |
| Paper type | White, middel, chalky |
| Print technique | Photogravure |
| Printed by | PWPW (Państwowa Wytwórnia Papierów Wartościowych) |
| Perforation | 11¼ (comb) |
| Height | 36.00 mm |
| Width | 36.50 mm |
| Catalog prices | No catalog prices set yet |
