I like vintage jewelry and bought this on EBay just for fun. It's rather enormous and I can't raise up my hand to my face too fast or I'll knock my teeth out.

Are any of the chips / jetons genuine or was this a gift shop knockoff?

And what's with the disintegrating 100 jeton? I've seen many older plastic pieces with a lot of deterioration, but haven't had it explained to me yet. So feel free..