Original oil and gas trade magazine vintage ad for ARMCO STEEL CORPORATION of Pittsburgh, PA. National Supply drawworks and drive is built to give you drilling speed, efficiency, long service life. They are compact, easy to move and rig up. Pictured is a rig-up of an 8-B rig before shipment to Spain.Also shown is a 55-P rig, one of the largest ever to be mounted on trailers. This unique 1962 old oilfield petroleum industry rig equipment magazine advertisement would display beautifully matted and framed. Four-page gatefold ad.