As you can see from the scan the new Casino Arizona chips have different sides. If you want to be picky there are two of each chip. Because the printing on the edges is oriented both ways.
The edge color on the 50 cent chips varies from a pale mustard color to the tan color of the chip sides. I guess this would make for four 50 cent chips if you want to be picky again.
I think the $10 chip is the best looking.
They are using the same slot card from my last visit.