TCR shows six colors of this NCV chip from The Mint in Las Vegas. The Chip Guide shows scans of six different colors identified with TCR catalog numbers, but the pictures are separate scans of each chip (by different collectors in some cases). It's easy to make a scan look completely different by changing scan settings or touching up the scan with an editor.

I've looked at a lot of these chips have only found 5 colors. The scan below shows mine in a single scan on an Epson scanner. The only adjustment I've made is the lighting level of the composite scan using Photoshop; this doesn't change hue or saturation of the color.

I'd really like to see all six chips in a single scan from a quality scanner if someone has six they think are different. I have a suspicion there are only five different.