Original oil and gas trade magazine vintage ad for SKELLY OIL COMPANY of Tulsa, OK. An Unsurpassed Greasing Service. Proper greases and equipment to lube every part of a car. Independent producers and marketers of a complete line for products to increase business through balanced selling. Gasoline, motor oils, solvents, kerosenes, tractor fuels, tires and tubes, batteries. This unique 1937 old petroleum products refining service station industry magazine advertisement would display beautifully matted and framed.