| Added by |
 Maciej Pasztor
|
| General Description : | Image II - Watermark III 5 |
| Face value | 60 groszy |
| Catalog code (Michel) | 1225 |
| Catalog code (Scott) | 973 |
| Catalog code | Polish Stamps Catalog 1081 |
| Series | Fourth Congress of Polish Engineers. - Wrocław 1961 |
| Stamp colour | Red and black |
| Watermark | III 5 |
| Print run | 610,000 |
| Issue date | 11/02/1961 |
| Designer | Seweryn Jasiński |
| Paper type | White; middel, smooth |
| Print technique | Offset |
| Printed by | PWPW (Państwowa Wytwórnia Papierów Wartościowych) |
| Perforation | 12½ x 12¾ (comb) |
| Height | 27.70 mm |
| Width | 22.00 mm |
| Catalog prices | No catalog prices set yet |
