Even if you don't think they're Nice, believe me, they are. But not from Nice (the city). It would not be Nice for me to suggest that.

Turn them around (90 deg.) and the bottom-most characters are denominations. 0 + Rocking Horse on the red chip means 50¢, dash on blue chip is a 1 (dollar we suppose) and so on.

http://www.themogh.org/cg_chip2.php?id=XCZZNI

The last chip in that scan, the light purple one, is also a Golden Profit.

The chips apparently are not very, very scarce. So, for identifying all chips, free egg roll.