Summary: British soldiers launching balloons carrying propaganda leaflets to drift over enemy lines, near Béthune, Western Front, 4 September 1918.
Description: A corporal and private of the Hampshire Regiment, overseen by a junior officer, use cylinders of gas to inflate medium-sized balloons. To each of these is attached a string carrying a bundle of leaflets and a slow fuse. The corporal lights the fuse (which when burnt through will release the leaflets) and launches one of the balloons. Two of the balloons float away into the sky.