(1877-1909) Ship's XI-inch Dahlgren pivot gun in action, probably while she was at the New York Navy Yard, circa spring 1890. Photographed by E.H. Hart, New York City. View looks aft from the forecastle, with the navigating bridge in the background. Note the gun's iron carriage, Sailor at left holding a shell (weighing about 127 pounds) in preparation for loading, and men wearing double row loop cartridge belts for trap-door Springfield rifles. U.S. Naval History and Heritage Command Photograph.