| Added by |
 Maciej Pasztor
|
| Face value | 6 złotych |
| Catalog code (Michel) | PL 533 |
| Catalog code (Scott) | PL 457 |
| Catalog code | Yvert et Tellier PL 554 Stanley Gibbons PL 652 AFA number PL 530 Polish Stamps Catalog (Fischer) PL 498 |
| Series | The 75th anniversary of the Universal Postal Union |
| Stamp colour | black lilac |
| Stamp use | Commemorative stamp |
| Print run | 500,000 |
| Issue date | 10/10/1949 |
| Designer | Ryszard Kleczewski grav: Bogusław Brandt |
| Paper type | White, Thin |
| Print technique | Recess |
| Printed by | PWPW SA (Polska Wytwórnia Papierow Wartosciowych SA) |
| Perforation | 12¾ x 12½ (harrow) |
| Height | 21.00 mm |
| Width | 26.70 mm |
| Catalog prices | No catalog prices set yet |
