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  E-mail Message: I thought you might be interested in this item at http://www.worldcat.org/oclc/97264 Title: How to write codes and send secret messages Author: John Lawrence Peterson; Bernice Myers Publisher: New York : Four Winds Press, ©1970. OCLC:97264

  
  

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How to write codes and send secret messages

Author:	John Lawrence Peterson; Bernice Myers
Publisher:	New York : Four Winds Press, ©1970.
Edition/Format:	Book : Juvenile audience : EnglishView all editions and formats
Summary:	Explains how to write and decipher space codes, hidden word codes, and alphabet codes and gives formulas for invisible ink. Includes suggestions for delivering coded messages.
Rating:	(not yet rated) 0 with reviews - Be the first.