Original oil and gas trade magazine vintage ad for A. O. SMITH CORP, of Milwaukee, Wi. Drilling And Production, Pipeline, Refining And Petro-chemicals, Marketing And Distribution. Casing, Electric Motors, Gasoline Pumps, Heat Exchangers, Line Pipe, Meters, Pressure Vessels, Water Heaters, Welding Electrodes, Welding Machines. Unique 1959 old petroleum industry magazine Supplement Foldout magazine advertisement would look fantastic matted and framed. 10 pages.