| Added by |
 Maciej Pasztor
|
| General Description : | Like Scott C10 or Polish stamps cat. 259 |
| Face value | 30 Groszy |
| Catalog code (Scott) | C12 (Air-Mail) |
| Catalog code | Polish Stamps Catalog 269 |
| Series | Challenge |
| Print run | 2,080,750 |
| Issue date | 28/08/1934 |
| Print technique | Typography (Overprint) |
| Catalog prices | No catalog prices set yet |
