1100 Steel Hulls built in the last 15 years TENNESSEE — a sister ship of the OHIO— on launching ways at our: Pittsburgh Shipyard. Designed by Cox & Stevens, Naval Architects Standard Unit Navigation Co., Engineers has for fifteen years specialized in the construction of every type of floating craft for inland river, harbor and coastwise service, including barges, dredges, derrick boats, whirler boats, lighters, mixer boats, compressor boats, oil barges, dump scows, carfloats, and all types of Steam and Diesel TOWBOATS Also specialists in dock and material handling installations. Control Room Lounge The Dravo Contracting Company A Subsidiary of Dravo Corporation DESIGNERS - - - ENGINEERS - - - BUILDERS General Offices and Shops: Neville Island, Pittsburgh, Pa. Shipyards: Neville Island, Ohio River, Pittsburgh, Pa. Christiana River, Wilmington, Delaware. MaRINE Revirew—April, 1931 a3