El Salvador
Now showing: El Salvador - Postage stamps (1867 - 2020) - 2 stamps.
1979
The 8th Mechanical, Electrical and Allied Trade Engineers' Congress, San Salvador
19. October WM: None Perforation: 14½ x 14
![[The 8th Mechanical, Electrical and Allied Trade Engineers' Congress, San Salvador, type QU]](https://swmedia-4cd6.kxcdn.com/media/catalogue/El-Salvador/Postage-stamps/QU-s.jpg)
1979
Airmail - The 8th Mechanical, Electrical and Allied Trade Engineers` Congress, San Salvador
19. October WM: None Perforation: 14½ x 14
