Airmail - The 35th Anniversary of Mexican Social Insurance Institute 1978
Now showing: Mexico - Postage stamps - 1978 - Airmail - The 35th Anniversary of Mexican Social Insurance Institute - 2 stamps.
1978
Airmail - The 35th Anniversary of Mexican Social Insurance Institute
19. January WM: 12 Sheetsize: 25 Design: D. A. Siqueiros et D. Rivera Engraving: TIEV Perforation: 14¼ x 14
![[Airmail - The 35th Anniversary of Mexican Social Insurance Institute, type BCU]](https://www.stampworld.com/media/catalogue/Mexico/Postage-stamps/BCU-s.jpg)
![[Airmail - The 35th Anniversary of Mexican Social Insurance Institute, type BCV]](https://www.stampworld.com/media/catalogue/Mexico/Postage-stamps/BCV-s.jpg)
