Title: The Spy Who Wasn’t Caught
Author: Ronald Seth
Seth, Ronald (1966). The Spy Who Wasn’t Caught: The Story of Julius Silber. London: Hale
- World War, 1914-1918–Secret service–Germany.
- Silber, Jules Crawford.
- Spies–Great Britain–Biography.
- World War, 1914-1918–Censorship–Great Britain.
- Espionage–Germany–History–20th century.
- Espionage–Great Britain–History–20th century.
Date Posted: November 4, 2016
Reviewed by Paul W. Blackstock and Frank L. Schaf
An account of the activities of Julius Silber, a German expatriate who worked successfully as an espionage agent in the British Postal Censorship Department throughout World War I and returned to Germany after the war.
 Blackstock, Paul W. (1978) and Frank L. Schaf, Jr. Intelligence, Espionage, Counterespionage, And Covert Operations: A Guide to Information Sources. Detroit: Gale Research Co., p. 166