| Added by |
 No one
|
| Face value | 40 groszy |
| Catalog code (Michel) | 1090 |
| Catalog code (Scott) | 839 |
| Catalog code | Polish Stamps Catalog 945 |
| Series | Third meeting of the Polish United Workers' Party |
| Place in series | 1 |
| Stamp colour | Multicolored |
| Watermark | III 4 |
| Stamp use | Commemorative stamp |
| Designer | Józef Kończak |
| Paper type | White; Thick, Smooth |
| Print technique | Photogravure |
| Printed by | PWPW (Państwowa Wytwórnia Papierów Wartościowych) |
| Perforation | 12¾ x 12½ (comb) |
| Height | 27.50 mm |
| Width | 21.00 mm |
| Catalog prices | No catalog prices set yet |
