Great find. The Chip Rack shows the Khoury's El rancho Rio black $25 [N4110] as "Z" rated chip but with a plus. If in very good condition that value is placed at $800 or over--it's the highest rating. If you are interested in selling, why not consider putting it in one of the auctions--e.g. the annual CC&GTCC auction--or Howard Hertz' auctions or the several A.C. area auctions. But I bet you hear from a lot of rich folks on this one. I've got $6.50 in my pocket, but $4 is for lunch so I can't come up with much. <g>