Original oil and gas trade magazine vintage ad for INTERNATIONAL HARVESTER COMPANY. Main office and factory was located at 180 North Michigan Avenue, Chicago, IL. Repowered Rig Cuts Drilling Cost 25 Dollars a Day. The Fortenbery Drilling Company has an Ideco rig working in Mississippi which was recently repowered with three International UDT-817 Diesel Engines. They require less fuel according to driller, Mr H.W. Bolivar. This unique 1962 old oilfield petroleum engine equipment magazine advertisement would display beautifully matted and framed.