SPYSCH_141026_747
Existing comment: Great Seal of the United States
Replica, showing cut away and hidden listening device
Originally issued by NKVD, 1946
The bug, nicknamed "the Thing," is a passive cavity resonator that required no internal power. When it was not activated, it was almost impossible to detect -- no wired to be discovered, no batteries to wear out. It did, however, require air to fill the surrounding cavity. The air was supplied through a tiny hole int he eagles' beak.
Modify description