| Added by |
 Maciej Pasztor
|
| Material | Gold |
| Face value | 40 groszy |
| Catalog code (Michel) | 695 |
| Catalog code (Scott) | 512 |
| Catalog code | Polish Stamps Catalog 557 |
| Series | 1st Congress of Polish Science |
| Print run | 2.131.000 |
| Issue date | 25/06/1951 |
| Designer | Stefan Łukaszewski |
| Paper type | White; Thin Smooth |
| Print technique | Photogravure |
| Printed by | PWPW (Państwowa Wytwórnia Papierów Wartościowych) |
| Perforation | 12½ x 12¾ (comb) |
| Height | 25.40 mm |
| Width | 19.70 mm |
| Catalog prices | No catalog prices set yet |
