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Over 50 Secret Codes

About Over 50 Secret Codes

Children love to learn secret codes and write encrypted messages and this book will teach them everything they need to know, including Semaphore and Morse code, "Grid code" used in the American Civil War, Egyptian hieroglyphics and traditional number replacement and alphabet switching codes.

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  • Language:
  • English
  • ISBN:
  • 9781409584612
  • Binding:
  • Paperback
  • Pages:
  • 112
  • Published:
  • February 28, 2015
  • Dimensions:
  • 132x198x9 mm.
  • Weight:
  • 188 g.
  In stock
Delivery: 3-5 business days
Expected delivery: December 26, 2024
Extended return policy to January 30, 2025
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    Cannot be delivered before Christmas.
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Description of Over 50 Secret Codes

Children love to learn secret codes and write encrypted messages and this book will teach them everything they need to know, including Semaphore and Morse code, "Grid code" used in the American Civil War, Egyptian hieroglyphics and traditional number replacement and alphabet switching codes.

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