Airmail - The 11th International Leprosy Congress 1978
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1978
Airmail - The 11th International Leprosy Congress
13. november WM: 12 Design: R. Alcántara R. Perforering: 14¼ x 14
![[Airmail - The 11th International Leprosy Congress, Typ BEH]](https://www.stampworld.com/media/catalogue/Mexico/Postage-stamps/BEH-s.jpg)