Gasoline has been a staple of the American economy since John D. Rockefeller discovered the value of the substance in the early 1900s. At first, it was merely the highly flammable runoff from refining kerosene, all of which went completely to waste, soaking into the ground surrounding his refineries. Once the internal combustion engine was invented, Rockefeller realized the immense value of gasoline, and began constructing service stations across the country to deliver Standard Oil gasoline to the drivers of horseless carriages. This Modern Made Texaco Sky Chief Su-preme Gasoline Enamel On Steel Advertising Pump Plate Sign is in Excellent Condition, with a few small chips in the middle front top edge, some scratching at the lower left front, and with some light scattered wear evident. Most interestingly, it’s one-sided, measures 18” x 12”, and boasts “Sky Chief / Su-preme / TEXACO / GASOLINE / SUPER-CHARGED WITH / PETROX” in red and black lettering on a bright green and white base at front. It sports 6 hanging grommets around the edges, and is a beautiful example of a Modern Made Texaco Sky Chief Su-preme Gasoline Enamel On Steel Advertising Pump Plate Sign.