| Added by |
 Maciej Pasztor
|
| Face value | 20 mark |
| Catalog code (Michel) | 15 (Germany - Östlisches Oberschlesien Reguläre ausgabe) |
| Catalog code (Scott) | 184 |
| Catalog code | Polish Stamps Catalog 158 |
| Series | Union of Upper Silesia with Poland. |
| Place in series | 15 |
| Stamp colour | Deep violet |
| Stamp use | Commemorative stamp |
| Print run | 4,417,000 |
| Issue date | 19/06/1922 |
| Paper type | White; very thin |
| Print technique | Typography |
| Printed by | PZG Warszawa |
| Perforation | 12¾ x 12½ (harrow) |
| Height | 22.00 mm |
| Width | 27.50 mm |
| Catalog prices | No catalog prices set yet |
