Identifying possible cannonball

[General Butler]

For @bayonet - I've attached a PDF about how to identify a cannon ball. If a round ball isn't really close in weight and diameter to those in published charts then it isn't a cannon ball. Also, here's a link to a site with tables of diameters and weights of projectiles (select one of the "projectiles" tabs on the red menu on the left of the home screen): http://www.civilwarartillery.com/

This is great...thanks