I was updating my collection today and posting scans to my website when I came across a duplicate file error message. I was trying to post a scan of a 2004 Riviera APA Pool Tournament chip that I thought was E3709, but it turns out I already had what I thought was that chip. Turns out there are two different ones, one blue background with NSC under 2004 and the other green background with NTC under the 2004. See the pics below (assuming I got them in there right!). Could someone please tell me which is E3709 and what the TCR number is for the other? Thanks very much!

Carl