| Added by |
 Maciej Pasztor
|
| Face value | 20 Marka on 10 Heller |
| Catalog code (Michel) | Porto 34 |
| Catalog code (Scott) | POSTAGE DUE J37 |
| Catalog code | Polish Stamps Catalog D34 (Znaczki dopłaty) |
| Series | Regular Issue of 1919 Surcharged |
| Place in series | 3 |
| Stamp colour | Lake overprint Black |
| Stamp use | Postage Due stamp |
| Print run | 42,000 |
| Issue date | 25/01/1921 |
| Designer | J.Michalski |
| Paper type | Wove |
| Print technique | Lithography overprint typography |
| Printed by | Drukarnia Zielińskiego Kraków |
| Perforation | imper. |
| Height | 26.00 mm |
| Width | 22.00 mm |
| Catalog prices | No catalog prices set yet |
