We recently dug up our pasture to bury some debri . While filling the hole back in I found this "cannonball" I took it to the closest museum to me and they weren't sure how to authenticate it, as its a small town and there not well educated as some bigger towns may be. So that lead me here this weighs exactly 8 lb 13.2 ounces and is 4 1/8" wide. Since my research for Dunkirk OH shows no military activity in the area im assuming it is probably not real but hey one never knows.