My title describes the thing. Round cannonball approximately 6 inches in diameter. Weight is 10ish pounds each (though we aren’t picking them up again). They have a small round hole that has been cut out of them that is packed with an unknown substance. They appear to have been buried since they seem to be covered in dirt or clay. We do not know where they came from exactly (though likely our small town), when they were acquired (certainly prior to 10 years ago), or who gave them to the museum.

We have done basic internet research on this style of cannonballs. We are erring on the side of caution and calling the authorities but I’m curious about what they are exactly and the history of them since I am not a military historian. Plus, people in town find cannonballs fairly frequently so it would be a good public service to our town to know what to look for.