Hover over the painting to magnify (there may be an initial delay while the magnified image is loaded)
Official photograph issued by the Press Bureau "Great British Advance in the West, C.2266..."
Framed (ref: 6137)
Black and white photograph
Inscribed on reverse: "Great British Advance in the West, C.2266. Within 500 yards of the Boche and in one of their concrete dug-outs, these men are transmitting the orders of the Observation Officers and altering the range for the batteries"
6 5/8 x 8 1/2 in. (16.8 x 21.5 cm)
Field telephones were first used in the First World War to direct troops. The replaced flag signals and the telegraph as an efficient means of communication, but they depended on the laying of land lines. The first field telephones had a wind-up generator, used to power the telephone's ringer and batteries to send the call.