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Timeless Signals: Forgotten Communication Devices
Moderate difficulty suitable for most players
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Across
  • 1. Simple ancient tool used for signaling over distances
  • 2. Invented to record sound, once useful for sending messages
  • 4. Device that sent typed messages over long distances
Down
  • 3. Bird used historically to carry secret messages
  • 5. Machine to send scanned documents over telephone lines
  • 6. Message sent electrically with Morse code before emails
  • 7. Early office device used to encode data via holes

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