| Added by |
 Maciej Pasztor
|
| General Description : | Counterfeits exist. Owerprint:: Red: stamp 280 (Scott) Black: stamp 281 |
| Material | Gold |
| Face value | 20 & 30 Groszy |
| Catalog code (Scott) | 280 & 281 |
| Catalog code | Polish Stamps Catalog 264 & 265 |
| Series | Katowice Philatelic Exhibition. |
| Print run | 40,800 each |
| Issue date | 01/06/1934 |
| Paper type | White |
| Print technique | Typography (Overprint) |
| Perforation | 12 x 12½ harrow (polish stamps catalog) |
| Catalog prices | No catalog prices set yet |
