CrosswordMint
Echoes of Forgotten Messaging Systems
Moderate difficulty suitable for most players
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Across
  • 1. Visual signaling method using flags or lights to convey messages.
  • 2. A card sent by mail with a message and a picture on one side.
  • 6. Bird used for centuries to carry messages across distances.
Down
  • 3. Mechanical device used to produce typed documents before computers.
  • 4. Device that transmits scanned printed material over telephone lines.
  • 5. An early system of sending messages using coded electrical signals.
  • 7. Code using dots and dashes to represent letters and numbers.

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