| Added by |
 Maciej Pasztor
|
| Face value | 50 Fenig on 20 Groszy |
| Catalog code (Michel) | PL 5 |
| Catalog code (Scott) | PL 14 |
| Catalog code | Yvert et Tellier PL 4 Stanley Gibbons PL 5 AFA number PL 5 Polish Stamps Catalog (Fischer) PL 5 |
| Series | Stamps of the Warsaw Local Post Surcharged |
| Stamp colour | black ultramarine / light grey yellow |
| Watermark | Wavy Lines Type 3 [Up] |
| Stamp use | Definitive stamp |
| Print run | 183,000 |
| Issue date | 17/11/1918 |
| Designer | Edward Trojanowski |
| Paper type | White |
| Print technique | Lithography |
| Perforation | 11½ |
| Catalog prices | No catalog prices set yet |
