CJ is short for "Christy Jones". Christy Jones was a chip manufacturer who are famous for their Hat and Cane (H&C) mold chips. CJ H&C chips are distinquishable from other H&C chips by the extraordinarily shiny surface inside the hat. CJ chips are also commonly referred to as "Christies".
Contributed By: Mike Pellerin, Bob Orme, and Pete Porro