The A B C universal commercial electric telegraphic code, improved by the addition of a code condenser ... specially adapted for the use of financiers, merchants, shipowners, underwriters, engineers, brokers, agents, etc., suitable for everyone. Multum in parvo. Simplicity and economy palpable, secrecy absolute. By W. Clauson-Thue, F. R. G. S.
|Main Author:||Clauson-Thue, William, 1834-1907|
New York, Allied code company of the United States, c1919.
Cipher and telegraph codes
xx p., lL., 1400 p.
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