Original oil and gas trade magazine vintage ad for WESTCOTT & GREIS, INC. of Tulsa OK, Dallas TX and Los Angeles CA. JAT Intermitting Control System, A Revolutionary Departure in Air and Gas Lift. Their motto: MEASURMENT and CONTROL. Photographed are 2 field men, named Mr. H. A. Shaw and Mr. E. H. Short, Jr., in the Seminole District. The Gastributor. Unique 1928 old petroleum refining process industry equipment magazine advertisement.