Sachs was educated at Charterhouse School .
Sachs was served as a gunnery officer in the Royal Artillery in the First World War , from 1917 to 1919 , receiving wounds to his left hand .
Sachs was educated at Charterhouse School and served as a gunnery officer in the Royal Artillery in the First World War , from 1917 to 1919 , receiving wounds to his left hand .