1768683 Harold Roper Robinson and William Lawrence Bragg, Vosges, Autumn 1915 (b/w photo) by English Photographer, (20th century); The Royal Institution, London, UK; (add.info.: Harold Roper Robinson (1889??955), physicist. Sir William Lawrence Bragg (31 March 1890 ??1 July 1971), Australian-born British physicist and X-ray crystallographer who, with his father, won the Nobel Prize in Physics in 1915 for his work on X-ray diffraction techniques. A station was set up in Vosges to train soldiers in sound ranging techniques.); 穢 Royal Institution ; English, out of copyright.