The ChipGuide is a collaborative project supported by and supporting the casino collectibles hobby. The only reason that we are "missing" items is that we haven't received an image of it from a collector. So go through your collections and see what you have that is not on the ChipGuide. Make a scan of it and then use the ChipGuide Submission form to send it to us. That's how the ChipGuide grows and becomes more complete. We currently only have about 1/2 of the known Nevada chips on the ChipGuide. We are fairly complete on Riverboat chips. The percentage is probably a lot lower for the rest of the world.