1768695 Aerial photograph with WWI trenches, 1917 (b/w photo) by English Photographer, (20th century); The Royal Institution, London, UK; (add.info.: Aerial photograph from an album belonging to Nobel Prize-winning physicist William Lawrence Bragg (31 March 1890 ??1 July 1971) showing the north west side of the village of Bellicourt, 27 December 1917. The lines of trenches, railways and roads can be picked out, the photograph has been marked with north and a small white cross, possibly related to sound ranging.); 穢 Royal Institution ; English, out of copyright.