Doug, here is a mystery. I have this piece. I can call it a token or maybe an insert for a chip, or part of jewelry. It is made of copper (I tested the metal content). It has a smooth outer rim. Same deign on both sides. But different design than any token or chips known. Weighs in at .44 of an ounce.

Might you have any idea what this is or is from ?

Thanks and enjoy. Dennis