Original oil and gas trade magazine vintage ad for AMERICAN AIR FILTER COMPANY. Main office and plant was located at 444 Central Ave, Louisville, Kentucky. New Cycoil low resistance oil bath air cleaner. Modern engine design demands it! The only high efficiency oil bath air cleaner that meets the lower allowable intake resistance demanded with use of turbo-chargers and pressure blowers for scavenging. This unique 1954 old two-page gatefold oilfield petroleum drilling industry magazine advertisement would display beautifully matted and framed.