I have a client who has a gambling chip marked "Dexter Saloon - Nome" with "25" on both sides. It is beige in color and has a "stop sign" shape. Wyatt Earp was part owner of this saloon in the last 1890's. Has anyone since or heard of this chip before? I'm trying to determine if it is authentic or not - are forgeries and fakes a problem with old chips? Thank you - Warren Anderson