Found this promo chip on eBay recently. Not listed in TCR and not in the Promo Tokens book that I can see. There is a chip in TCR from the Royal Casino, Henderson with the same 5 Free Nickels marking, so this is probably also a 1960's item.

I looked in the Antique Poker book and also did not see this 16 Pips mold listed. It's a light injection molded plastic item.

I feel this is at least as rare as the chip from the Red Wagon owned by the black sheriff of Las Vegas, so I will entertain offers starting at $150 <g>.