F-21 Spy camera in bra developed by East German state security on display at German Spy Museum in Berlin Germany

Stasi surveillance hi-res stock photography and images - Alamy

German Exhibit Reveals Secret Stasi Spy Photos : The Picture Show : NPR

An F21 'Ammer' spy camera is displayed at the Stasi , or East German News Photo - Getty Images

German Exhibit Reveals Secret Stasi Spy Photos : The Picture Show : NPR

Berlin Spy Museum - Wikipedia

The Clever Cameras Used by the East German Stasi to Spy on Citizens

Visit the German Spy Museum in Berlin (Deutsches Spionagemuseum)

An F21 'Ammer' spy camera is displayed at the Stasi , or East German News Photo - Getty Images

44 Photos & High Res Pictures - Getty Images