| Added by |
 Bart Perdieus
|
| Face value | 20 francs |
| Catalog code (Michel) | BE 1670y |
| Catalog code (Scott) | BE 774 |
| Catalog code | Yvert et Tellier BE 1587 Stanley Gibbons BE 2222 AFA number BE 1684F Belgium BE 1587 Unificato BE 1587 |
| Stamp colour | Blue violet |
| Stamp use | Definitive stamp |
| Issue date | 24/05/1971 |
| Designer | Charles Leclercq / Harry Elstrom |
| Paper type | phosphorescent (P3) |
| Print technique | recess |
| Perforation | 11 1/2 |
| Height | 25.00 mm |
| Width | 28.00 mm |
| Catalog prices | No catalog prices set yet |
