Room 40 was the unofficial name of the British Admiralty's World War 1 codebreaking organisation. This book supplies the answers to many intriguing questions on such topics as the "Lusitania", the Dardanelles, Jutland and how Room 40 helped to defeat the U-Boats
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Book Description Harcourt, 1983. Hardcover. Book Condition: New. Bookseller Inventory # P110151786348
Book Description Book Condition: Brand New. Book Condition: Brand New. Bookseller Inventory # 97801517863431.0