Gene good research. If the Chip Guide. Com is going to be the one of the bibles for chips, then I would hope that when information becomes more prevalent it would be updated. My post was not to put a dark cloud on these chips or to cause any harm to the chips owner. I thought something must be wrong with these chips. When I opened Caesars A.C. I remember the 2nd. issue of chips were mandated by Gaming to have the denominations stamped on the mold to prevent counterfeiting and add to chip security, see pics below .... the pink & white chips has the $1 denom on the mold ... missing in the green & white version ... thank you ... Rich Burgel