I got a few of these along with a bunch of chips from George's Gateway many years ago at a flea market in Oroville. They are listed in The Chip Rack (N7509) but not in green. Also in the Chip Guide under Harrah's Reno. I always suspected they may have actually been used at Tahoe when Harrah's first opened. I notice that there are only a couple of them at the top of a stack and are a slightly different shade than Harvey's Chips.