A metal shield is fitted to the roof of a car to protect against anti-aircraft shell splinters.
Titles read: "WARE SPLINTERS!"
Several shots of two men and a woman fixing a new metal shield to the roof of a Ford car to protect against falling splinters of anti-aircraft shells. The steel shield is tied on to the front and back bumpers; the car also has blackout shields over the headlights. One of the men and the woman get inside and drive around a roundabout.
Good footage of a 'phoney-war' gadget that didn't catch on (or did it?).