No, I'm not talking about not having a smooth turned finish like a Northern Rodman, I'm taliking about it being a rough casting, even for a Southern iron gun. The muzzle face, muzzle mouldings, muzzle astragal and fillets, and cascabel neck fillet all have a very rough appearance; I don't think the foundrymen at the "Athens Steam Company" where the gun was cast, had aesthetics at the top of their priorities list when they made this cannon. Other Southern foundries did the same, (though not to this extent) Joseph R. Anderson who was the owner of Tredegar also decided to eliminate useless machine work, and leave the exterior roughness on his iron cannons.
There are three vents: Each barrel has its own touch hole, so it can be fired independent of the other, and a common touch hole in the center is designed to fire both barrels simultaneously. According to history, the middle vent meant to fire both tubes at the same time, evidently didn't function the way it was intended to.