El Salvador
Now showing: El Salvador - Postage stamps (1867 - 2020) - 2 stamps.
1976
The 10th Anniversary of Central Inter-American Tax-collectors Association
18. May WM: None Perforation: 12¾
![[The 10th Anniversary of Central Inter-American Tax-collectors Association, type OB]](https://swmedia-4cd6.kxcdn.com/media/catalogue/El-Salvador/Postage-stamps/OB-s.jpg)
1976
Airmail - The 10th Anniversary of Central Inter-American Tax-Collectors Association
18. May WM: None Perforation: 12¾
![[Airmail - The 10th Anniversary of Central Inter-American Tax-Collectors Association, type OB1]](https://swmedia-4cd6.kxcdn.com/media/catalogue/El-Salvador/Postage-stamps/OB1-s.jpg)
