These octagonal Chipcos were made for Harrahs Reno and Tahoe about 20 years ago. I'm not absolutely sure what their purpose was but have heard speculation that they were handed to players that had some kind of problem in the casino. They are quite similar but the Tahoe chip seems to be hardest to find.

I'll sell the Reno octagon for $40 and the Tahoe octagon for $50, both delivered in USA for this price.

Strangely, TheChipGuide has the Tahoe chip in the regular-chip category while the Reno chip is called a Limited Edition. Neither is marked with an issue quantity so I wouldn't call them LE's.