Gene - N P Chips are listed in BOTH the Chip .....
...Guide and Jimmy Campiglia's Price Guide. I bought the chips directly from Jimmy in 1997 and was told they were an early issue of Roulette chips from Nevada Palace.
Doc and Jimmy - please let us know what attribution info you have on these N P chips. I am going by what I was told and what has been recorded in the two Major Nevada chip guides.
Take care,
Jerry