5924532 Abandoned oil boring machinery in the desert, c.1917 (b/w photo) by Unknown photographer, (20th century); National Army Museum, London; (add.info.: Abandoned oil boring machinery in the desert, c.1917 Photograph, World War One, Middle East (1914-1918), Palestine 1917. Image caption states: ?Boring machinery abandoned here on outbreak of war - by Anglo-German Syndicate\' Keystone Drilling Company was an American manufacturer of oil drilling machines. They made and sold prospecting machines for coal, zinc, lead and gold which were used all over the world. From around the 1880s international oil mining companies were established across Palestine. The outbreak of World War One (1914-1918) interrupted many of these ventures. From a collection of photographs taken by Corporal Joseph Egerton, Shropshire Yeomanry in Sinai and Palestine, World War One (1914-1918)); by National Army Museum ; out of copyright.