How To Write Codes And Send Secret Messages

How To Write Codes And Send Secret Messages

Book - 1970
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Baker & Taylor
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.

& Taylor

Offers young, would-be intelligence agents a guide to writing and deciphering a variety of codes using simple techniques and materials

Publisher: New York, NY : Miscellaneous, c1970
ISBN: 9780590070560
Characteristics: 64 p.; cm


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