Stamps Category Communications

Postal code
Francisco Minguez
Stamp Day - Mailbox.
Herman Cudris Castañeda
ITU
carlos ródenas ferré
Telephone map - Scott/Romania 2277.
Herman Cudris Castañeda
Communication.
Herman Cudris Castañeda
Communications.
Herman Cudris Castañeda
Internationale Funkausstellung Berlin 1971.
Herman Cudris Castañeda
Effelsberg Radio Telescope
Nelida Fernandez Besada
Raisting ground station
Nelida Fernandez Besada
Airmail
Antonio Gordienco Muñoz