| Added by |
 Maciej Pasztor
|
| Face value | 12 groszy |
| Catalog code (Michel) | Germany GG Dienstmarken 19 |
| Catalog code (Scott) | Poland Occup. official stamps NO19 |
| Catalog code | Polish Stamps Catalog GG OU 19 |
| Place in series | 4 |
| Stamp colour | Slate green |
| Stamp use | Official stamp |
| Issue date | 05/08/1940 |
| Paper type | White, middel, smooth. |
| Print technique | Photogravure and: typography |
| Printed by | State Printing in Vienna |
| Perforation | 12 (harrow) |
| Height | 16.25 mm |
| Width | 21.50 mm |
| Catalog prices | No catalog prices set yet |
