Calgary Public Library

The reader of gentlemen's mail, Herbert O. Yardley and the birth of American codebreaking, by David Kahn

Label
The reader of gentlemen's mail, Herbert O. Yardley and the birth of American codebreaking, by David Kahn
Language
eng
Form of composition
other
Main title
The reader of gentlemen's mail
Medium
talking book daisy
Responsibility statement
by David Kahn
Sub title
Herbert O. Yardley and the birth of American codebreaking
Summary
Herbert Yardley had established America's first codebreaking agency in 1917. His unit was closed in 1929 by Henry Stimson, who intoned, "Gentlemen do not read each other's mail." Yardley then wrote a best-selling memoir, "The American Black Chamber", which detailed the exploits of the State Department's Cipher Bureau, and disclosed codemaking and breaking to the public. Some descriptions of sex. 2004
Target audience
specialized

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