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Vintage Signals and Silent Codes is a easy crossword puzzle with 15 clues covering . Play it online for free below, or create your own crossword with our free crossword maker.

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Vintage Signals and Silent Codes
Explore hidden ways people communicated before modern technology in this crossword featuring forgotten methods and devices.
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Across
  • 1. Visual signaling using flags or arms
  • 2. Light used to send navigational or warning signals
  • 4. Bright signal fire or light used in emergencies
  • 5. Early electric system sending coded signals
  • 7. Type of pigeon trained to return home
  • 10. Signal sent by patterns of fire output
  • 12. Descriptor for animals or people carrying messages
  • 13. Bird used to carry messages over distances
Down
  • 3. Instrument used for long-distance rhythmic signals
  • 6. Device that signals by reflecting sunlight
  • 8. Old term for a type of mechanical signal, or buzzing sound for communication
  • 9. Dot and dash code for telegraphic communication
  • 11. Prisoner’s method for communicating by tapping
  • 14. Early method of recording and sending messages
  • 15. Secret code used to encrypt messages
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