| Added by |
 Maciej Pasztor
|
| Face value | 30 (pfennig) |
| Catalog code (Michel) | Porto 27 |
| Catalog code (Scott) | POSTAGE DUE J18 |
| Catalog code | Polish Stamps Catalog D28 (Znaczki dopłaty) |
| Series | Numerals of value for northern Poland |
| Place in series | 6 |
| Stamp colour | Orange |
| Stamp use | Postage Due stamp |
| Print run | 3,050,000 |
| Issue date | 09/09/1919 |
| Designer | Władysław Skoczylas |
| Paper type | White; Thick Smooth |
| Print technique | Typography |
| Perforation | 11½ (line) |
| Height | 18.00 mm |
| Width | 18.00 mm |
| Catalog prices | No catalog prices set yet |
