some light on this debate. I find it interesting that the chip you have came from an antique shop here in Arizona. The group pf these chips found previously (supposedly in the Las Vegas area) have essentially been sold to chip collectors. The fact that one chip now surfaces in an antique store in Arizona can indicate several different things.

If that chip was not part of the larger group found, then maybe it's source can be tracked. Can the antique store be identified? Can the shop owner be contacted to ask where he/she acquired it?

Sure, its a long shot, but.....

Jim Follis