Bentley's complete phrase code

(nearly 1000 million combinations) with at least 2 letters difference between each half-code word)

by E. L. Bentley
Published in 1909, Rose Publishing Company (New York)

Bentley's complete phrase code

E. L. Bentley

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By statement:	compiled by E.L. Bentley ...
Language:	English
Pagination:	[348] p.
Subject:	Cipher and telegraph codes.