| Added by |
 Maciej Pasztor
|
| General Description : | Like Michel 529A |
| Material | Gold |
| Face value | 90 groszy |
| Catalog code (Michel) | 729B |
| Catalog code (Scott) | C29 (Air mail) imperf. |
| Catalog code | Polish Stamps Catalog 591A |
| Series | An Ilyushin II-12 „Coach” flying over several landscapes |
| Print run | 51,000 |
| Catalog prices | No catalog prices set yet |
