Original oil and gas trade magazine vintage ad for CATERPILLAR TRACTOR COMPANY. Main office and factory was located in Peoria, IL. Spotted. Winch-Equipped Caterpillar Tractors lick light jobs and heavy ones. They put oil field equipment on the spot where it's to be used, pipe, derricks, machinery. This unique 1931 old oilfield petroleum drilling and pumping equipment tractor magazine advertisement would display beautifully matted and framed.