Soviet press conference of 10 April 1987 in which they show the SRT-56 bugging device of the CIA
This short (1:24) news reel is probably the only surviving footage of the opening of the Dutch Radar Laboratory in July 1947. The history and the products of the NRP are featured extensively on the Crypto Museum website. Between 1954 and 1984, the NRP produced high-end covert equipment for the CIA under the name Easy Chair.
Two recently discovered videos from the late 1970s about the use of the American STU-II crypto phone.