Original oil and gas trade magazine vintage ad for J. F. PRITCHARD & COMPANY. Main office and factory was located in Kansas City, MO. Rugged POWairSAVER Fan Develops Maximum Air Flow Economically. Pritchard Cooling Towers. Unique 1955 old petroleum gas refining industry cooling equipment magazine advertisement. On the reverse side is an ad for WALWORTH COMPANY of New York City, NYC. Walworth Makes Both Cast Steel Gate Valves and Lubricated Plug Valves for Pipeline Service. Manufacturers since 1842 valves, pipe fittings, pipe wrenches. Unique 1955 old petroleum pipe line valve magazine advertisement. Approximate size 9 x 12 inches.