| Added by |
 Maciej Pasztor
|
| Face value | 50 fenig |
| Catalog code (Michel) | Dieneste 16 |
| Catalog code (Scott) | OFFICIAL O16 |
| Catalog code | Polish Stamps Catalog U16 (Znaczki urzędowe) |
| Series | Numbers 2 |
| Place in series | 5 |
| Stamp colour | Red |
| Stamp use | Official stamp |
| Print run | 8,549,000 (with U6) |
| Issue date | 20/11/1920 |
| Designer | Edmund Ludwik Bartłomiejczyk |
| Paper type | thin laid vertically or horizontally |
| Print technique | Typography |
| Printed by | Drukarnia Poczty i Telekomunikacji Warszawa |
| Perforation | 11½ (line) |
| Height | 16.50 mm |
| Width | 26.00 mm |
| Catalog prices | No catalog prices set yet |
