International Telecommunication Day 1973
Now showing: Belgium - Postage stamps - 1973 - International Telecommunication Day - 1 stamps.
1973
International Telecommunication Day
12. May WM: None Design: Kenneth Ponsaers y Leon Janssens. Perforation: 11½
![[International Telecommunication Day, type APY]](https://www.stampworld.com/media/catalogue/Belgium/Postage-stamps/APY-s.jpg)