| Added by |
 Maciej Pasztor
|
| Face value | 50 Groszy |
| Catalog code (Michel) | 2309 A |
| Catalog code (Scott) | 2030 |
| Catalog code | Polish Stamps Catalog 2161 |
| Series | SOCPHILEX IV International Philatelic Exhibition, Katowice, May 18-June 2. |
| Place in series | 1 |
| Stamp colour | Multicolored |
| Stamp use | Commemorative stamp |
| Print run | 10,135,000 |
| Designer | Helena Matuszewska |
| Paper type | Middel; white; chalky |
| Print technique | Photogravure |
| Printed by | PWPW (Państwowa Wytwórnia Papierów Wartościowych) |
| Perforation | 11½ x 11¼ (comb) |
| Height | 38.50 mm |
| Width | 26.90 mm |
| Catalog prices | No catalog prices set yet |
![1974 Poland uprated stationary envelopes [2] posted to USA](https://i.ebayimg.com/images/g/3ygAAOSw-fZnPcTZ/s-l225.jpg)
