5925162 A Rolls-Royce light armoured car, Abbeville, May 1916 (lantern slide) by Unknown photographer, (20th century); National Army Museum, London; (add.info.: A Rolls-Royce light armoured car, Abbeville, May 1916. Lantern slide, World War One, Western Front (1914-1918), 1916. At the start of the war, British armoured car squadrons were used as mechanised raiding columns on the Western Front. As trench warfare developed the armoured cars could no longer operate in this role so they were used to guard lines of communication or were redeployed to other theatres. From a box of 80 lantern slides.); by National Army Museum ; out of copyright.