Today I received two $1 Vegas World chips and I was trying to determine if they were the same chip or different. The only difference I could easily tell between them was the hot stamp. One looks gold and one looks silver. I am still kind of new to collecting and I don't think I have ever seen a silver hot stamp before. I have seen and own a lot of gold hot stamps, but silver? Is the chip on the right just a faded version of the one on the left or is it actually stamped in silver. I checked the Chip Guide, but didn't see any silver hot stamped Vegas World chips. By the way, under magnification, I can see a few slight difference in the stamps. Just trying to educate myself on the subject, so any help is appreciated. Thank you.