"Study for the Bridge over the Arras-lens Railway (iwm Art 1163)" image: a squared up preparatory drawing for John Nash's painting 'The Bridge over the Arras-Lens Railway'. A view of the arched bridge over the Arras-Lens railway. A line of British infantrymen walk along the railway line, with another line of men walking along a track up the steep cliff face on the left, some carrying sections of corrugated iron. Two carriages of a hospital train are visible on the tracks in the lower foreground. There are two shell explosions in the top left and anti-aircraft fire in the sky above.