Stamps Category Institutions

II SPANISH REPUBLIC
César Polo Gómez
Institute of Geology - UNAM.
Herman Cudris Castañeda
Edifil
Miguel Rodríguez López
Air traffic control
Nelida Fernandez Besada
Swiss Air Rescue - Swiss Rescue Organization
Nelida Fernandez Besada
50TH ANNIVERSARY LIONS INTERNATIONAL.
Doctor Melenuko
Territorial Credit Institute - Dr. Eduardo Santos, founder - 1939-1969, 30th Anniversary.
Herman Cudris Castañeda
Colombian Institute F.D.
Herman Cudris Castañeda
Edifil 1564
Miguel Rodríguez López
Edifil 1562
Miguel Rodríguez López