There are two, very close in shades green chips and it seems consistent in that one of the shades is more worn than the other. This could mean one of two things. One shade is a variation of a reorder and that shade does not have the full wear of the earlier order. Or, two different shades for two different sets of chips, and one set does not get used as often. Like the set used for the Orleans Open (3 or 4 weeks of play, once a year, for the past 13 years) vs. twice daily for the past 14 years.

The shade of green of this chip:

Could be lime or olive, as opposed to being light green.

Thanks for the scan!

Jim