Weird Richard! What does the reverse look like? As you may know but others don't, the reverse of the red GN Club chip has a big grind mark that removed whatever was there and the blue one has the initials P N seperated by a small diamond. Jung & Pfaender's Guide shows B and Z Enterprises out of Sacramento but only lists two HHL chips with the note "Looks like paste on inlay" and has a Gold Nugget Club 50¢ Lgcrwn green w/black at $10-18. No other info. Might drop a query to Steve McLendon at chipman@cwnet.com , he's usually got Sacramento stuff. Sticker looks better than some of the Paul-Son junk these days!