Manual of cryptography
By: prepared by the General Staff, War Office.
Series: A Cryptographic series -- 28; Cryptographic series -- 28
Publisher: Aegean Park Press
Published: 1980
Place of publication: Laguna Hills, Calif
Language: eng
Number of pages: 96
Subjects: Ciphers; Cryptography
Notes: "Wheatstone's cryptograph."

Reproduction of a classical, historical document, c. 1914.

Bibliography: p. [i]

Includes index.