I think I hit the motherload this weekend. I contacted this guy who has been collecting a $1 token, $1 chip and $5 chips from every casino he has visited since the 1960's. These piles are sorted by tokens, cruise, Nevada, other states and AC. There are about 160 of each type of chip. And a lot of the Carribean chips I have never seen before. The only thing that may prevent this from being the motherlode is that a few of the chips have damage from the light (darkened inlays) since he had them on display, even though he said they were never in the sunlight. In any case, I have lots of chips to go thru before the convention.