| Added by |
 Maciej Pasztor
|
| Face value | 50 groszy on 40 groszy |
| Catalog code (Michel) | Portomarken 90 |
| Catalog code (Scott) | J90 |
| Catalog code | Polish Stamps Catalog D87 (Znaczki doplaty) |
| Series | Postage Due Stamps of 1924 Surcharged |
| Stamp colour | Brown overprint black |
| Stamp use | Postage Due stamp |
| Print run | 1,300,000 |
| Issue date | 02/06/1937 |
| Designer | Edward Trojanowski |
| Paper type | very thin, white |
| Print technique | Typography |
| Printed by | PZG overprint PWPW |
| Perforation | 10½ (line), 11¾ x 11½ (comb) or 12 (line) |
| Catalog prices | No catalog prices set yet |
