| Added by |
 Maciej Pasztor
|
| Face value | 20 groszy |
| Catalog code (Michel) | Porto 71 I or II |
| Catalog code (Scott) | POSTAGE DUE J74 |
| Catalog code | Polish Stamps Catalog D71 Ix or IIw (Znaczki dopłaty) |
| Series | Values in grosz and Polish Eagle |
| Place in series | 7 |
| Stamp colour | Brown |
| Stamp use | Postage Due stamp |
| Print run | 18,001,000 |
| Issue date | 00/06/1924 |
| Designer | Edward Trojanowski |
| Paper type | White; very thin or white thick |
| Print technique | Typography |
| Printed by | PZG Warszawa |
| Perforation | 10-13 (line) or 11¾ x 11½ (comb) - I or12½ x 12¾ (harrow) - II |
| Height | 25.50 mm |
| Width | 20.50 mm |
| Catalog prices | No catalog prices set yet |
