File:Amateur Radio Satellite USSR stamp.jpg - Wikimedia Commons
AM Radio, R.A. Fessenden, 1900 - Canada Postage Stamp | Canada Day - Science and Technology, Canadian Innovations in Communications
Stamps with the theme Radio and Television - Freestampcatalogue.com - The free online stampcatalogue with over 500.000 stamps listed.
Early Dallas Radio & “Verified Reception Stamps” | Flashback : Dallas
Stamp: Globe, Radio Tower and Microphone (Taiwan (Republic of China)(30th Anniversary of Chinese Broadcasting Service) Mi:TW 269,Sn:TW 1170,Yt:TW 236,Sg:TW 261