Original oil and gas trade magazine vintage ad for UNITED STATES STEEL CORPORATION of Pittsburgh, PA. On the go with Sheldon Reynolds, National Tube's field engineer in Louisiana and Texas. He can recommend the right kind of tubular product for an entire field or design an extra margin of safety into an offshore installation. Sheldon's job is to help his customers solve their operating problems. He is on call any hour of the night or day. This is the kind of extra service you get when you specify drill pipe, casing or tubing from National Tube. Division of USS. This unique 1962 old two-page gatefold petroleum oilfield drilling rig equipment magazine advertisement would display beautifully matted and framed.