Presents more than one hundred cryptogrammatic puzzles, from simple Caesar ciphers to Null ciphers and Nihilist Transpositions. Title: Cryptograms and Spygrams Author: Gleason, Norma Publisher: Dover Pubns Publication Date: 1981/06/01 Number of Pages: Binding Type: PAPERBACK Library of Congress: 80068656 Additional Details \N BRAND : Gleason, Norma
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