In the days when international broadcasters played a prominent role in promoting a nation's brand image, commemorative postage stamps of government broadcasters were often at the forefront. In the spirit of that era I have collected individual stamps, first day cover issues and maxim cards that featured government stations, private broadcasters and/or amateur radio.
Voice of America (VOA). Shown on the envelope is a cachet of a VOA control studio, along with a block set of VOA stamps, postmarked Washington D.C.NETHERLANDS ANTILLES POST in 1970 released two first day cover stamps of the Trans World Radio Bonaire transmitter/studio site. This stamps affixed to this envelope is one of two known cachets. A postcard of the station with a stamp of the studio was also issued.
ISRAEL POST in 1986 issued a commemorative stamp marking the 50th anniversary of Radio Broadcasting in Israel (KOL).