Original oil and gas trade magazine vintage ad for WORCESTER VALVE COMPANY, INC, was located at 16 Parker Street, Worcester, MA. The Balf Stone and Gravel Company of Newington, CT installed Econ-O-Miser Ball Valves to replace the plug valves in unloading tar from electrically heated storage tanks. This unique 1962 old petroleum refining process industry equipment magazine advertisement would display beautifully matted and framed.