Dictator: The 13-Inch Mortar of Petersburg
In 1864 a 13-Inch Seacoast Mortar, Pattern 1861, was used by the United States Army in the siege of Petersburg. The mortar was mounted on a railcar - named the Petersburg Express - and used against Confederate fortifications. The fame of this heavy mortar may be greater than it's impact upon the siege. Whether the "Dictator" is among the approximately thirty 13-Inch Mortars which survive to the present is a matter of conjecture.
The Whitworth Rifles of the Naval Battery on Morris Island
Four 5-Inch Whitworth Muzzle Loading Rifles were captured by the US Navy when the Blockade Runner S.S. Princess Royal was captured by USS Unadilla off of Charleston. Two of the four survive. One at West Point bearing a plaque stating that it was used on Morris Island. The other is at the Washington Navy Yard where it may have been tested in the experimental battery there.
The Bronze Smoothbores of Charleston
Three bronze smoothbore cannons - A 6-Pounder Field Gun of the American Revolution, a Model 1841 12-Pounder Howitzer engraved S.C., and a 12-Pounder Mountain Howitzer at Fort Sumter - are displayed in Charleston, South Carolina.
Parrott Rifles of Forts Sumter and Moultrie
Fort Sumter and Fort Moultrie near Charleston, South Carolina display fourteen Parrott Rifles. These cannon were manufactured during the Civil War for the United States Army and Navy. As the United States Army restored the fortifications of Charleston in the years following the Civil War, these cannons were mounted at the two forts. In the late 19th century they were intentionally buried - too obsolete and too corroded to worth removing.
Model 1845 42-Pounders at Fort Sumter
Fort Sumter displays two Model 1845 42-Pounder guns on casemate carriages on either side of the sallyport which visitors enter.