Original oil and gas trade magazine vintage ad for CHICAGO BRIDGE & IRON COMPANY, CB&I, of Atlanta, GA. Birmingham, AL. Boston, MA. Chicago, IL. Cleveland, OH. Detroit, MI. Houston, TX. Los Angles, CA. New York City, NYC. Philadelphia, PA. Pittsburgh, PA. Salt Lake City, UT. San Francisco, CA. Seattle, WA. Tulsa, OK. and Washington. Twin Vaporspheres Earn Their Keep Early, located at Shell Oil Company's Dominguez Refinery, California. Unique 1955 old petroleum products storage industry magazine advertisement would look fantastic matted and framed.