International Telecommunication Day 1971
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1971
International Telecommunication Day
15. May VM: Ingen Arkstørrelse: 30 Design: Jean Malvaux. Gravering: Héliogravure Perforering: 11½
![[International Telecommunication Day, type ANG]](https://www.stampworld.com/media/catalogue/Belgium/Postage-stamps/ANG-s.jpg)
