The 15th Conference of Inter-American Security Printers Federation, San Salvador 1975
Viser nå: El Salvador - Postfrimerker - 1975 - The 15th Conference of Inter-American Security Printers Federation, San Salvador - 2 frimerker.
Viser nå: El Salvador - Postfrimerker - 1975 - The 15th Conference of Inter-American Security Printers Federation, San Salvador - 2 frimerker.
![[The 15th Conference of Inter-American Security Printers Federation, San Salvador, type NP]](https://www.stampworld.com/media/catalogue/El-Salvador/Postage-stamps/NP-s.jpg)
![[The 15th Conference of Inter-American Security Printers Federation, San Salvador, type NP1]](https://www.stampworld.com/media/catalogue/El-Salvador/Postage-stamps/NP1-s.jpg)
