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Scope and ContentMagazine ad by Bethlehem Steel preview of Lincoln Tunnel third tube. Full page black-and-white ad published in unidentified publication, February 1954, page unknown. Leaf clipped from publication, 8-1/4" x 11-1/8" high; reverse has penciled date, 2/54. Bethlehem Steel had a shipyard in Hoboken at this time in its Shipbuilding Division; while unrelated to Hoboken, the ad shows the breadth and scope of this major steel producer [photo of the full scale model of the tunnel with cars and people referred to in text] Text: Preview of New Hudson River Tube Work is getting into full swing on a third tube for the Lincoln Tunnel beneath the Hudson River between New York City and New Jersey. Crews are sinking land shafts at the tunnel site, and 90 miles to the west, in our Bethlehem, Pa., plant, foundrymen and machinists are at work on the iron and steel lining. The additional tube will be 31 feet in diameter and 1 1/2 miles long, with the lining built up piece by piece of more than 30,000 individual segments bolted together. Most of the segments will be made of cast iron, for use where the tunnel goes through the mud and silt of the river bed. In the portions of the tunnel that run through solid rock segments made of steel will be used for their superior strength. Above is the actual-size simulated section of the tube that we set up at the Bethlehem plant at the time engineers of the Port of New York Authority, owners and operators of the tunnel, made an inspection trip late in the fall. The large outer ring shows how the segments are fastened together to form the lining. The Lincoln Tunnel now has two tubes, with four lanes. The new tube, to open in 1957, will increase the tunnel's annual capacity by 50 per cent, and will enable it to handle double the present volume of morning and afternoon peak-load traffic to and from Manhattan.