For a long time the Red Lion Casino in Elko, Nevada used these $1. Chips. I am asking if the minor differences in color between these two chips actually make these two different chips. The one on the left is newer with less use and appears to be a bluer color. The chip on the right is older--with more use--and appears to have a bluish/green color. I have several of each so I know it is not a fluke. If they are different--would they rate two different codes? Thanks. Doug