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Before Bletchley Park : the codebreakers of the First World War / Paul Gannon.

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940.48641/GAN	Adult non-fiction		Armidale	. Available .		Select this item

Catalogue Information
	Details
ISBN	9780750992466
Author	Gannon, Paul
Title	Before Bletchley Park : the codebreakers of the First World War / Paul Gannon.
Publication	Cheltenham, Gloucestershire : History Press, 2020.
Physical description	352 pages, 8 unnumbered pages of plates : illustrations (some color), maps ; 24 cm.
Notes	The story of Bletchley Park's codebreaking operations in the Second World War is now well known, but its counterparts in the First World War - Room 40 and MI1 (b) - remain in the shadows, despite their involvement in and influence on most of the major events of that war. Using hundreds of intercepted and decrypted German military, naval and diplomatic messages, author Paul Gannon reveals the fascinating story of British codebreaking operations.
Subject	World War, 1914-1918 -- Cryptography
	World War, 1914-1918 -- Secret service -- Great Britain
	Cryptography -- History -- Great Britain
	Secret service -- Great Britain
Links to Related Works	Subject References: Cryptography -- History -- Great Britain . Great Britain -- History -- George V, 1910-1936 . Secret service -- Great Britain . World War, 1914-1918 -- Cryptography . World War, 1914-1918 -- Secret service -- Great Britain . Authors: Gannon, Paul . Classification: 940.48641/GAN .