John,
I have a notched set of (7) of these Mirage Chipco rous, that were given out at the October 1997 Arizona Charlies show by Chipco All of the chips are the linen finish variety with various edge designs. It is my understanding that these chips are/were used in a private high roller section at the Mirage that is located on another floor away from the main Casino. Suppoedly there is only one roulette table in this area , hence there is no need to have a # or letter on the chips. I also have one un-notched chip from this series and it is a different color than the (7) notched chips.
Mr. Roulette
Jerry Birl