looks more pronounced on the chip on the left; as if it's a newer or less-used one. If not just a trick of the scan, it would seem one of the chips is a re-order. As the others before me have commented, with what I also see as slightly different colors and graphics. At least worth a mention as a "reissue" or some such if not given a wholly new ChipGuide ID number at the Wet Administrator's review and decision. (Somebody hand the Wet Administrator a towel.)