The library here in New Madrid has a large solid shot mounted at the base of a flag pole. It was recovered from here and is an artifact of the Island #10/Siege of New Madrid operation in early 1862.
I am trying to figure out what fired it. We had ironclad gunboats, mortar boats, siege guns, floating batteries and field pieces all throwing iron around here.
It is a solid shot and has a circumference of 47 inches. That's really all there is to it but I don't know enough about big guns to know what may have fired this thing. Any help much appreciated.