
Police Notice. Air Raid Danger. Conceal your Lights. All windows, skylights, glass doors, etc., in private houses, shops, factories, and other premises must, as from to-day, be completely screened after dusk, so that no light is visible from the outside. Dark coverings, must be used so that the presence of a light within the building cannot be detected from outside. All illuminated advertisements, signs and external lights of all kinds must be extinguished, excepting any specially authorised traffic or railway signal lights or other specially exempted lights. Lights on all vehicles on roads must be dimmed and screened. The Police will issue leaflets describing the restrictions to be observed. These measures are necessary for your protection in case of air attack.