Now showing: Mexico - Postage stamps - 1971 - Airmail - World Telecommunications Day - 1 stamps.
7. August WM: 13 Perforation: 14
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![[Airmail - World Telecommunications Day, type AUI]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Mexico/Postage-stamps/AUI-s.jpg)
