| Added by |
 Radu Florin
|
| Face value | 25,50 $ - escudo portughez |
| Catalog code (Michel) | PT 1526 |
| Catalog code (Scott) | PT 1502 |
| Catalog code | Yvert et Tellier PT 1504 Stanley Gibbons PT 1836 AFA number PT 1514 Afinsa-Mundifil PT 1514 |
| Stamp colour | multicolor |
| Stamp use | Commemorative stamp |
| Print run | 1.000.000 |
| Issue date | 16/03/1981 |
| Designer | alberto Cardozo |
| Paper type | Esmaltado With phosphorescent band |
| Print technique | Offset lithography |
| Printed by | Imprensa Nacional Casa da Moeda |
| Perforation | comb 12 x 11¾ |
| Height | 29.00 mm |
| Width | 40.00 mm |
| Catalog prices | No catalog prices set yet |
