An american first world war public information poster saying Don't Talk Spies Are Listening

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Size: 3851px × 5000px
Photo credit: © CBW / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: careless, column, columnists, fear, fears, information, mania, poster, posters, propaganda, public, spies, spy, spying, talk, war, world, ww1