The miniature gun pictured was
in the possession of KGB
assassin Nikolai Khokhlov, who
opted to defect to West Germany
in 1954 rather than kill Georgi
Okolovich, an anti-communist
emigre in Frankfurt. The gun--
one of two issued to Khokhlov--
could fire poisoned bullets to
make sure of a kill. The collapsible barrel had a
built-in silencer,and the gun when fired made "a sound
less than the snap of a finger," according to press
accounts at the time.
Source=www.cnn.com/SPECIALS/cold.war/experience/spies/spy.gadgets/weapons/silenced.firearms.html