Not only I have I found a gray issue of the chip, but now I have another error of the chip with missing hot stamp on one side. Click on the link below and it will open the page. Run your mouse over the missing hot stamp chip and you can see the other side. Here is the story on the missing hot stamp. When the Crstal Palace received their order of chips, five were discovered with missing hot stamps on one side. They were pulled and stored away instead of returning to Paulson. After the casino closed down, I suspect an employee took these 5 home. Now, 20 years later they surfaced and I purchased one of them as shown in the link along with the gray one.