These are some notes I have on the Gambino chips below -

"Produced by Jordan Berk, Berk Trading Company, Yonkers, NY. Chips are from a plush, illegal card room located in NYC. Business was located on either E 51st or E 53rd. The rat logo was seen on jackets worn by the card room staff."

Can anybody add information to this? Also, are there any more variations floating around?

Thanks,
Pete