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Cryptic Relics of Pre-Internet Communication is a hard crossword puzzle with 18 clues covering . Play it online for free below, or create your own crossword with our free crossword maker.

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Cryptic Relics of Pre-Internet Communication
Challenging puzzle for experienced crossword solvers
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Across
  • 1. Official record keeper who authenticated message logs and dispatches
  • 2. Breeding loft specialized for avian postal workers' dispatch duties
  • 3. Secret handwritten code used in colonial America’s underground networks
  • 4. Vulnerable tribal code of ephemeral plumes drifting from campfires
  • 8. Rotating disk used for encrypting messages in pre-digital espionage
  • 9. An archaic term for pneumatic tube communication, air-driven transit
  • 11. Feathered couriers bearing messages through hostile terrains and wars
  • 12. Arm-waving apparatus relayed messages visually like an analog modem
  • 16. Waving cloth alphabet sending coded messages over considerable distances
Down
  • 5. Mechanical typewriter with remote communication quirks, pre-digital
  • 6. A bird’s innate GPS used centuries for clandestine correspondence
  • 7. Sunlit semaphore signaling by mirror flashes, ancient optical telegraphy
  • 10. Science of rapid coded transmission before electronic networking
  • 13. Facsimile transmission preceded email by scanning and sending images
  • 14. Dot-dash cipher underpinning telegraphy’s linguistic revolution
  • 15. Edison’s tin foil contraption recording sound—an aural telegram
  • 17. Samuel Morse’s brilliant shorthand electrified messages across wires
  • 18. Human messenger enduring peril, fidelity paramount in old dispatch
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