50 Secret Codes by Emily Bone (Novelty book, 2008)

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AU $13.90

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  • Get it by Mon, 26 Mar - Wed, 4 Apr from Sydney, Australia
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  • • Returns accepted - 60 days money back
Format:Card or Card Deck. the cards contain a combination of codes such as Semaphore and Morse code, as well as historical codes including the 'Grid code' used in the American Civil War and Ancient Egyptian hieroglyphics and traditional codes such as number replacement and alphabet switching codes.