The Signal Service in the European War of 1914-1918 (France) (1921)

Priestley, Raymond Edward, 1886- · Chatham : W. & J. Mackay & co.,limited · leaf 396

Great Britain. Army. Royal Engineers. Signal Service · World War, 1914-1918 -- Great Britain · Signals and signaling

Internet Archive · University of California Libraries · Public domain (published before 1931). Free to use for anything.

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