Original oil and gas trade magazine vintage ad for SOUTHWEST INDUSTRIES, INC. Main office was located in Houston, TX. Packaged Gas Compressor at Southern Natural Gas Company's Franklinton, Louisiana plant is shown. Rugged, heavy duty compressors have proved themselves in main line pumping. The same advantages of economy, speed, installation, and ease of operation can be yours too. This unique 1959 old petroleum refinery compressed gas industry equipment magazine advertisement would display beautifully matted and framed.