I photographed these Model 1861 13-inch Seacoast Mortar examples at Fort Lee and “The Dictator” at the Petersburgh Battlefield VA
13-inch Seacoast Mortar “The Dictator”
Displayed in the spot where it fired 218 times (mostly at the Chesterfield Battery across the Appomattox River) during the first three months of siege in 1864.