Solving simple substitution ciphers
Publisher: The American Cryptogram Association
Published: 1943
Place of publication: Rochester, N. Y.
Language: eng
Number of pages: 42
Subjects: Ciphers; Cryptography
Notes: First edition. Galland, p. 85.

Bound in gray paper wrappers; printed in red.

Library of the American Cryptogram Association (George C. Lamb Collection).