Humorous drawing depicting an aggressive looking Army sergeant instructing a young Tommy to blow the horn, not gargle it, though the young man looks as if he's unable to successfully produce a sound. Drawn on a postcard by George Ranstead, an amateur artist of the Great War who served in the Army Pay Corps. Ranstead was one of many soldiers of WWI who took up drawing as a hobby. His subjects range from wartime humour to pictures of pretty girls and are clearly influenced by images in the illustrated magazines of the period.