CrosswordMint
Clever Devices of Cold War Espionage
Moderate difficulty suitable for most players
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Across
  • 1. Famous cipher machine cracked during World War II
  • 2. Technique or device used to intercept telephone conversations
  • 6. Compact device often concealed to capture images covertly
Down
  • 3. Method or device for encoding secret messages
  • 4. Hidden listening device used to secretly capture conversations
  • 5. Tiny photograph used to hide information on a small scale
  • 7. Jewelry piece sometimes used to hide miniature photographs or notes

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