Between Silk And Cyanide: A Codemaker's War 1941-1945 (1999) By Leo Marks
 
Marks was "recognized as a cryptographer of genius. he became head of communications at the Special Operations Executive (SOE), where he revolutionized the codemaking techniques of the Allies, and trained some of the most famed agents dropped into occupied Europe." 
 
Between Silk and Cyanide: A Codemaker's War 1941–1945 is a memoir of public interest by former Special Operations Executive (SOE) cryptographer Leo Marks, describing his work, including memorable events, actions, and omissions of his colleagues during the Second World War. It was first published in 1998.
 
Soft Cover
614 Pages
In Fair Condition