It's about five years since I looked at the situation on the old small-key mustard-color dimes used at Harrahs Reno/Tahoe. TCR was updated with five varieties, and the descriptions were clarified and standardized so you could more easily tell what you have.

Although I still run across these Harrahs dimes from time to time, no new variety as jumped out at me, so I believe that it's likely all have been found. If anyone has found others, I'd like to hear about them. Not discussed here are the two red SMKEY chips, the mustard HUB mold chip, and the mustard SMCRWN chip.

I did look at Larry Hollibaugh's site and the Nevada site that Paul Hegge maintains. Both seem to list only three varieties. If either of you would like scans to add to your site, you're welcome to them.

The pic is small enough to print one one sheet of paper. You are welcome to print and save it for reference if you are interested in Harrahs chips.