Original oil and gas trade magazine vintage ad for CLARK BROTHERS COMPANY of Olean, NY. The Last One's Free. Guaranteed to burn less fuel than any Compressor now built, Clark Turbo-charged 2-Cycle Gas Engine Driven Compressors assure a saving of 12 1/2 percent in fuel costs over non turbocharged units of comparable displacement. In figuring fuel bills, you can cross off the last month of your calendar, actually, the last 45 days. Unique 1953 old petroleum industry equipment magazine advertisement. Two page gatefold advertisement.