Don...

We currently have 3 different $25 NCV's listed: green (E6910), lt green (E9383), and olive (E9384). All 3 are shown on the Visual Chip Rack page... http://www.silver-state-treasures.com/lasvegs/binionsn.htm

We have the $100 NCV's in black (E6911) and gray (E6912), as you say.

The 1000 that you show is listed as E7792, which I have listed as peach. I try to stay within the most primary color set that I can without getting into the millions of variations listed by the manufacturers, and I felt that peach was closer than yellow.

The 5000 E7793 is brown.

I still don't have a color for the 10000 NCV.

It's hard to say weather the chips with the "??" were actually made, but they were all approved by NGCB. We may change our policy and only list chips that we actually know exist rather than the ones that have been approved.