Glass eye containers used to hide secret messages on display at German Spy Museum in Berlin Germany

Filename: German-spy-7.jpg
Copyright: Iain Masterton
Image Size: 4454x3182 / 5.1MB; https://www.photoshelter.com/support/license; https://www.iainmasterton.com/about; German Spy Museum Berlin Germany German Deutsches interior spying museums equipment tourism historic spy history spying history Europe european
Contained in galleries: Berlin stock photographs, Germany Image Gallery