Original oil and gas trade magazine vintage ad for CONTINENTAL OIL COMPANY and CONOCO. More mileage to you, bread and butter to me. Germ processed oil. The spotlight is on mileage merchants. Dealers talk to their neighbors in local newspaper advertisements to inform the public they are individual, hometown merchants, just as much as a local grocer or clothier. This unique 1937 old petroleum products and gasoline magazine advertisement would display beautifully matted and framed. Two page gatefold advertisement.