These two small plaques are from the same French casino, about 2 x 2 1/2 inches. Both appear to be of the early construction based on the surface roughness. However, the orange one is again about 1 mm smaller than the yellow one, so maybe they are of different vintage. I believe they are both 1000 ffr.

These are not revalued at all. Does this help date them? Why would there be two colors for the same denomination? Could these serve as french roulette chips? Any other info on the small plaques?