Collection Dovers books of recreations, games, stunts, tricks, magic, etc.
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Laurence Dwight Smith, Auteur | New York : Dover publications | Dovers books of recreations, games, stunts, tricks, magic, etc. | 1955After a brief description of the history of secret writing, The reader is introduced to fundamental principales of ciphers transposition and substitution and given an understanding of the various methods of enciphering and deciphering secret m[...]
