Original gas and oil vintage ad for the WRIGHT CHEMICAL CORPORATION.  Main office and laboratory was located at 615 West Lake Street, in Chicago, IL. Preventitive Maintenance is Essential Today! Control Scale and Corrosion in Engine Jackets, Compressors, and Cooling Towers - Wherever Water Is Used. ​This old 1951 one page petroleum industry trade magazine advertisement would display beautifully matted and framed.