Original oil and gas trade magazine vintage ad for THE GIRDLER COMPANY, A Division of National Cylinder Gas Company. Main office was located in Louisville, KY. When you plan for a reliable source of hydrogen, take advantage of this experience, more than 50 hydrogen plants have been built by Girdler. Experienced engineer constructors provide dependable hydrogen facilities. This unique 1957 old petrochemical hydrogen production magazine advertisement would display beautifully matted and framed. Nice graphics.