| Added by |
 Maciej Pasztor
|
| Face value | (12 groszy) Polecona |
| Catalog code (Michel) | Dieneste 20 |
| Catalog code (Scott) | OFFICIAL O20 |
| Catalog code | Polish Stamps Catalog U20 (Znaczki urzędowe) |
| Series | Polish Eagle 2 |
| Place in series | 2 |
| Stamp colour | Carmine |
| Watermark | IIP or IIL |
| Stamp use | Official stamp |
| Print run | Unknown |
| Issue date | 01/04/1935 |
| Paper type | White; Thick Smooth |
| Print technique | Typography |
| Printed by | PWPW (Państwowa Wytwórnia Papierów Wartościowych) |
| Perforation | 12 x 12½ (Harrow) |
| Height | 22.00 mm |
| Width | 18.00 mm |
| Catalog prices | No catalog prices set yet |
