I recently got a plain mold chip with this Geometric design ( Seymour code PD-DR ). This design is the same used on some Arrowhead Inn chips. Is this chip possibly an Arrowhead chip or did the Arrowhead Inn boys just use a generic design on their chips? Also notice on the orange and purple chips the diamonds in the mold are different sizes. I collect chip mold types and the devil is in the details.