'The Battlefield of Arras', First World War, c1917, (c1920) '...map showing approximately (by the shaded portion) the ground won by the British armies up to the [German Field Marshal von] Hindenburg Line, and its switching-line between Drocourt and Qu?ant, in the Battle of Arras'. From 9 April to 16 May 1917, British troops attacked German defences near the French city of Arras on the Western Front. From "The Great World War: A History", Volume VII, edited by Frank A Mumby. [The Gresham Publishing Company Ltd, London, c1920]