~~~ in finding an attribution since there is someone's full name connected to the chips along with a date and maybe even another person (AG monogram) or possibly two persons with each having their last name initials forming the AG monogram and, of course the serial numbers indicate a level of seriousness in the control of what might have been a big enough of an operation where some additional information might pop up once submitted to ChipGuide. I would totally discount the whole series being part of a personal home set with the 500 and 1000 being serialized... Good luck.