|Classic Lionel plate girder bridge that replaced the 314 diecast version. Features sheet metal base (stamped with item number), plastic girder sides with embossed letters "LIONEL", and measures 10 inches by 4 and a half inches. For single track usage. Also came in a "U.S. STEEL" lettered variation. Boxes included Middle Classic, Hagerstown, and a rare carded blister pack. Built from 1953 until 1966, and again from 1968 until 1969.