(1863-1904) Crew members exercising with a 12-pounder Dahlgren howitzer (on an iron field carriage) on the monitor's deck, probably while she was serving on the James River, Virginia, in 1864-65. Probably photographed by the Matthew Brady organization. Note lookout with telescope atop the turret, dents in turret and conning tower from Confederate cannon shot, and the bitt on deck in the foreground. The original negative is # 111-B-612 in the National Archives. U.S. Naval History and Heritage Command Photograph.