Review of SIGINT: The Secret History of Signals Intelligence 1914–1945 by Peter Matthews: Matthews, Peter. SIGINT: The Secret History of Signals Intelligence 1914–1945. The History Press, Gloucestershire, UK, 2013. 256 pages, Hardcover, $32.95. ISBN 978-0752487342. Issue 3 (4th May 2017) - Christensen, Chris