Codes, Ciphers and Secret Writing
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Codes, Ciphers and Secret Writing

ISBN 13:  9780486247618

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Import stock, currently extended lead times to 2 - 3 weeks.  

Import stock, currently extended lead times to 2 - 3 weeks.

Author:  Martin Gardner
Format:  Paperback
No. of Pages:  96
Brand:  Dover Publications

Experiment with cryptography the science of secret writing. Cipher and decipher codes: transposition and polyalphabetical ciphers, famous codes, typewriter and telephone codes, codes that use playing cards, knots, and swizzle sticks...even invisible writing and sending messages through outer space. Hours of intrigue and challenge. 45 diagrams.

Illustrations: -
Author: Gardner
Size: -
Format: Book
Copyright: -
ISBN 13: 9780486247618

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