Civil War Cannon - Dover Album Featured Stewart Co. Image 3/28 May 12, 2014 11:56 Original Metadata Camera Model:Canon EOS 50D Original Time Taken:May 12, 2014 11:56 Shutter Speed:1/1600 sec Aperture:f/7.1 ISO Sensitivity:400 Exposure Compensation:-0.33 EV Metering Mode:Pattern Flash Fired:No Flash Focal Length:30 mm Located across the street from the Stewart County Courthouse is this cannon that was used in the civil war at nearby Fort Donelson.