Can any Forum member help to identify what I believe 'may' be a cannon ball? It has a lead 'plug' which suggests it 'may' be hollow? However it weights on my scales 12lb and has a diameter of about 4.5 inches. There does not appear to be any casting line around the circumference, although this may not be clearly visible. Any suggestions from shot put to shrapnel shell will be most welcome! Kind regards, Malcolm.