The badge face is 1.4cm high, slightly smaller than the similar Radio Prague pins, and has a long, stick pin fastener.
It dates from the 1970's and is from former Czechoslovakia. The picture has the radio Plzen transmitter logo with a star on top (the star was added after the communist coup of 1948) and has the text CSSR denoting the change of name from Czechoslovakia to the Czechoslovak Socialist Republic in 1960. State radio pins prior to 1960 did not feature the CSSR text.
Historical Background
The foremost broadcaster in former Czechoslovakia was the state owned Radio Prague.
The radio station first broadcast in 1936 and is still doing so today and has had a fascinating history.
In 1945 the Czech army seized control of radio Prague from the German SS company that had been stationed there to guard it.
In 1968 the invading Soviet army first secured Prague airport and the radio transmitters of radio Prague before the full scale invasion of the country. Radio Prague famously barricaded its doors and broadcast for Western assistance right up until the building was stormed by Soviet troops. The last broadcasts were used on newsreels worldwide.
Today radio Prague offers a range of programming and still broadcasts mainly on short wave frequencies.