Men adjust air raid siren on a Parisian roof.
Air Raid Siren on roof in Paris, France.
CU siren; with 6 cone-shaped horns coming out from circle; mounted on a wooden box; 2 workers are on roof doing something. GV roof w/ siren - roof slopes up from all sides; siren is at top. 3 men stand on roof; one is bringing a wire up to siren.
Danger; emergency; bombing. Signal. World War One; home front.
(Also on ON 235 H.)