Help with ID and age

[stryder]

View attachment 2188046
Found this in eastern North Carolina: 10.1-10.8mm diameter and 18.55g. Any ideas?

 

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[ncsuwolf]

The base and rings say old to me, but can’t find a match with that diameter in my books. Others on here should be able to help.

 

[The Rebel]

Looks like someone was board and made a chess/game piece.