CrosswordMint
Ciphered Relays of Antiquity
Challenging puzzle for experienced crossword solvers
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Across
  • 1. Avian courier service in wartime, feathered flyers of news
  • 3. Improvised or hastily made communication contrivance in field
  • 5. Early analogue transmission base for modulated info signals
  • 8. Notched wooden token used for message or account keeping
  • 11. Encoded rhythm delivered by sound taps in telegraphy
  • 13. Irregular warfare messages hidden in plain sight, cryptic tactics
  • 16. Handler of feathered message bearers, wartime communicator
Down
  • 2. African technique transmitting messages by rhythm and tone
  • 4. Sunlight signalling device with mirrors, Greek-derived in name
  • 6. An officer overseeing secret communications in ancient regimes
  • 7. Fireworks employed as coded signals in night communications
  • 9. Study of flags, essential for interpreting some old signals
  • 10. Ancient device theorized to imitate ear’s sound reception
  • 12. Projected silhouette signals or secret images conveyed silently
  • 14. Flag-based visual signalling system employed before telegraphs
  • 15. Experimental device converting sound to light for transmission
  • 17. Early photographic plates possibly sent as visual missives
  • 18. Agent transporting messages across battlefield or city
  • 19. Tent displaying coded light sequences, ephemeral signal post

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