Hi Jim,
You had me going there for awhile trying to find those numbers under Colorado Belle. I finally looked in the TCR "CR Number cross reference to casino name" in the yellow pages and found them at the Edgewater. I don't do scans well but maybe someone can scan them for you. They are two different chips. If you look at the last column on the right on P.63, you'll see that V6590 was issued in 2000. On P.64, V7430 was issued in 2001. Hope that this answers your question.