Stamps Category Communications

Postal Union of America and Spain
Nelida Fernandez Besada
Microphone
Luis Ruiz
EXCHANGE
javier avila
submarine cable
Nelida Fernandez Besada
Telecommunication
Nelida Fernandez Besada
Telecommunication
Nelida Fernandez Besada
Radio waves and cross
Luis Ruiz
Radio studio and transmitter
Luis Ruiz
Edf 3116 - Europe Cept
Manuel Briones
Postman's Day - Souvenir sheet
Luis Ruiz