I had to Google it. Now your friend can play the old mississippian game. Great find. Amazing find. My friend found some blue game balls. I would love to post them.
Small for a disc and with a hole to. Not saying it isnt cause I would do flips to find something like that. I hope you can get more pics of it Id like to see them.
Here is the other side. It has a inclusion in it but you can see its incised also. And the other whole discoidal I found, along with two other drilled broken discoidal pieces. All Ft. Ancient from the same site. And Unclemac is right, its a spindle whorl also. Thanks for the replies.