Vintage Petrol Station Safety Sign

A vintage rectangular metal safety sign, characteristic of those found at British petrol stations or industrial garages during the mid-20th century. The sign features two lines of red, sans-serif block lettering set against a white field, reading NO SMOKING and SWITCH OFF ENGINE. A thin red border frames the perimeter. The construction is of a pressed metal substrate, likely steel or tin, with a painted or enamelled finish. The typography and layout are consistent with period safety signage. No manufacturer marks, date stamps, or labels are visible on the displayed surface.