El Salvador
Viser nu El Salvador - Post frimærker (1867 - 2020) - 2 frimærker.
1971
Airmail - The 2nd International Music Festival, San Salvador
22. februar VM: Ingen Perforeringer: 13½
1973
Airmail - The 3rd International Music Festival - Issue of 1971 Overprinted "III festival Internacional de Musica 9 - 25 Febrero - 1973"
5. februar VM: Ingen Perforeringer: 13½