| Added by |
 Maciej Pasztor
|
| General Description : | Dato day - unknown |
| Face value | 2100 (pfennig) |
| Catalog code (Michel) | Porto 31 |
| Catalog code (Scott) | POSTAGE DUE J33 |
| Catalog code | Polish Stamps Catalog D22 (Znaczki dopłaty) |
| Series | Numerals of value for southern Poland |
| Place in series | 4 |
| Stamp colour | Dark blue |
| Stamp use | Postage Due stamp |
| Print run | 993,000 |
| Issue date | 00/05/1920 |
| Designer | Władysław Skoczylas |
| Paper type | White; Thin laid |
| Print technique | Typography |
| Printed by | Drukarnia Poczty i Telekomunikacji Warszawa |
| Perforation | 11½ (line) |
| Height | 18.00 mm |
| Width | 18.00 mm |
| Catalog prices | No catalog prices set yet |
