| Added by |
 Maciej Pasztor
|
| Face value | 60 groszy |
| Catalog code (Michel) | 1028 |
| Catalog code (Scott) | 789 |
| Catalog code | Polish Stamps Catalog 884 |
| Series | 4th international trade unions congress in Leipzig 1957 |
| Stamp colour | Vviolet |
| Stamp use | Commemorative stamp |
| Print run | 3,150,000 |
| Issue date | 25/09/1957 |
| Designer | J. Macierewicz |
| Paper type | White; Thin Smooth |
| Print technique | Photogravure |
| Printed by | PWPW (Państwowa Wytwórnia Papierów Wartościowych) |
| Perforation | 12¾ comb) |
| Height | 26.50 mm |
| Width | 20.20 mm |
| Catalog prices | No catalog prices set yet |
