As Nevada collectors know the state issues an approval list each month as well as a historical list here:
http://gaming.nv.gov/index.aspx?page=146

I have taken the historical list (through Jan 2013) and with a lot of effort reformatted into an Excel spreadsheet so that it can be searched and filtered:

The complete list includes over 24,000 chips and tokens going back to the ealy 1980s. With only a few click you can easily narrow it down to your area of collecting (town, casino, chip denom, etc).

I have a sample list of 200 I would be happy to send to anyone interested. I would like to trade the full list for LV/AC $1 chips. Just shoot me a note and let me know.

- Bob