(1865-1875) Just prior to launching, at the J.S. Underhull Shipyard, Greenpoint, Long Island, New York, 21 March 1865. Photographed by J.H. Beal & Company, New York. Note the extremely shallow hull of this light draft Casco class monitor, with propeller blades extending above the deck level. Courtesy of the Naval Historical Foundation, Wood Collection, 1971. U.S. Naval History and Heritage Command Photograph.