The chip shown on the top left of this picture, that is. The 3 others are shown in the CHIP GUIDE. This chip was used for a promotion in 1994. It was glued to an invitation promoting the recipient to visit Grand Casino (in Minnesota) and mailed to the casino's "High Rollers". This chip was definitely used at Grand Casino Mille Lacs, and most likely was also used at Grand Casino Hinckley. This group of 4 chips is VERY difficult to put together. As far as I know, my $100 no cash value blue and white chip is the only example known in collectors hands. Does anyone else have one?