The 1946 Great Seal Bug Story
In 1946 our ambassador to the USSR was Averell Harriman. The Russians pulled a fast one on him. They had Soviet school children present the ambassador with a two foot hand craved great seal of the US which Ambassador Harriman hung in his office. In 1952, a countermeasures survey revealed that the great seal contained a bugging devise. That means that for six years, the Soviet Union had the ambassador's office bugged. On May 20th 1960, Ambassador Henry Cabot Lodge, Jr. revealed the great seal bug to the UN.
The above photo
is an exact copy of the original made with a mold. It is on exhibit
The actual bug was very ingenious.
Any sound made in the room caused a spring to vibrate. Eavesdroppers outside
the building could then pick up the vibration measurements from the spring
and turn it back into sound.
Ralph D. Thomas PI Vintage Collection
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