For those who collect Nevada 2.50 chips and have been confused as to the difference in the two listed in TCR, here is a picture of both. Note that there is a difference in the inlay surfaces, as well as a fairly subtle difference in the color of the inserts.

I included the Unlisted no-cash-value 2.50 on the right. This one is notched, and probably was only a prototype. Note that they had to reduce the size of the denomination to make room for the NCV, and also changed the position of the 50c numerals.