| Added by |
 No one
|
| Face value | 20000 mark on 20 mark |
| Catalog code (Michel) | Porto 52x |
| Catalog code (Scott) | POSTAGE DUE J49 |
| Catalog code | Polish Stamps Catalog D51k2 (Znaczki dopłaty) |
| Series | Numbers and Eagle |
| Place in series | 2 |
| Stamp colour | Indigo overprint black |
| Stamp use | Postage Due stamp |
| Print run | 7,447,000 |
| Issue date | 00/11/1923 |
| Designer | Edward Trojanowski |
| Paper type | gray laid (horizontally or vertically) or or white thin laid (horizontally) or thick |
| Print technique | Typography overprint typography |
| Printed by | PZG Warszawa |
| Perforation | 11¾ ; 12¾ (comb) or 9 - 14½ (line) |
| Height | 21.50 mm |
| Width | 17.00 mm |
| Catalog prices | No catalog prices set yet |
