Got all these $2.50 chips, Jill? These are all the varieties I know of from N. Nevada Harrahs.

Some of the green chip varieties are differences in the type face, per Howdy Herz chart.

The brass slug hasn't been molded yet; it's not dissolved out of a finished chip as it doesn't show the machining marks put in at a later step.

The pink chip is a mystery. Probably a sample, but who knows...