El Salvador
Visar nu: El Salvador - Postfrimärken (1867 - 2020) - 2 frimärken.
1978
The 4th National Engineers' Congress, San Salvador
12. september WM: Inga Perforering: 13½
![[The 4th National Engineers' Congress, San Salvador, Typ PX]](https://swmedia-4cd6.kxcdn.com/media/catalogue/El-Salvador/Postage-stamps/PX-s.jpg)
1978
Airmail - The 4th National Engineers` Congress, San Salvador
12. september WM: Inga Perforering: 13½
![[Airmail - The 4th National Engineers` Congress, San Salvador, Typ PX1]](https://swmedia-4cd6.kxcdn.com/media/catalogue/El-Salvador/Postage-stamps/PX1-s.jpg)
