| Added by |
 Maciej Pasztor
|
| General Description : | 25th anniversary of the execution of three Polish revolutionists, Wladyslaw Hibner, Wladyslaw Kniewski and Henryk Rutkowski |
| Face value | 15 złotych |
| Catalog code (Michel) | PL 563 |
| Catalog code (Scott) | PL 485 |
| Catalog code | Yvert et Tellier PL 583 Stanley Gibbons PL 682 AFA number PL 560 Polish Stamps Catalog (Fischer) PL 528 |
| Series | The 25th anniversary of the execution of the fighters for Polish socialism |
| Stamp colour | grey black |
| Stamp use | Commemorative stamp |
| Print run | 4,840,500 |
| Issue date | 18/08/1950 |
| Designer | Czesław Kaczmarczyk |
| Paper type | White; Middel smooth |
| Print technique | Photogravure |
| Printed by | Drukarnia Narodowa w Krakowie |
| Perforation | 10¾ or 11¼ (line) |
| Height | 23.30 mm |
| Width | 28.00 mm |
| Catalog prices | No catalog prices set yet |
