Rare - Esso Oil Drop Enamel Advertising Sign The Oil Drop Man, a former mascot of ESSO Oil & Gas. The character itself was designed by Danish artist, Vilhelm Hansen. An attractive enamel advertising sign for Esso products. The Esso Oil Drop Man was introduced for Standard Oil, the main company that owned Esso. The Esso Boy was named Happy and paired with the Esso girl. Happy Oil Man appeared in many advertisements and publications and was well known for his appearance on Esso Service Station Maps. Measurements: 40.5 cm Length x 49.5 cm Height. The sign has a curve of around 2 cm and four fixing holes in the corners. The sign is in good condition for its age with slight enamel loss around the screw holes and edging. A Great Sign of interest in the collector's realm. Worldwide Delivery via Express Tracked and Insured Courier service.