Mexico
Now showing: Mexico - Postage stamps (1856 - 2024) - 1 stamps.
1966
The 9th Postal Union of Americas and Spain Congress, Mexico City
24. June WM: 12 Perforation: 14
![[The 9th Postal Union of Americas and Spain Congress, Mexico City, type AOY]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Mexico/Postage-stamps/AOY-s.jpg)