Stone Ball for comments

[Interested Party]

Originally Posted by fernando

Mill (grinding) balls are iron. That's what i feared when i gathered by iron ammo.

I recently found these in a friend's yard. I remembered reading a thread about items that could be mis marketed as cannon balls. I live in an area that had many precious metal ore mines at one time. I thought a picture might be appreciated. The measurements are in inches, my apologies to my metric friends. Also attached is a short reference from everyone's favorite source https://en.wikipedia.org/wiki/Ball_mill