Welcome to House of Heritage. Description: Rare and desirable Mobiloils petrol dealership advertising enamel sign, dating from circa 1940s. This is a great example of advertising signage from a car dealership. A rare sign that doesn’t come up on the market that often, a real collectors items. Dimensions : The sign is 76.5 cm in height by 124.5 cm in width. Condition: In good condition considering age, some small enamel and metal losses, some surface scratches, please see images.