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    Dover Puzzle Bks.: Codes, Ciphers and Secret Writing by Martin Gardner (1984,...

    • Item No : 186084168054
    • Condition : Very Good
    • Brand : No brand Info
    • Seller : ubiquitousjunkster
    • Current Bid : US $6.25

    • * Item Description

    • Learn the fundamentals of ciphers and how to decode them. Create your own secret writing with your friends. Fun book for everyone.
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