I was told a few months ago about a variation of the $1 chip from High Sierra, Lake Tahoe. It's a common chip, but it took me a while to find the one I didn't have. I finally found it on eBay. Here are the two chips.

The first person to correctly identify the difference will get my new personal chip. I'd also like to know if anyone else has the second chip, or has seen this variation on any other denoms.