is all anyone would need, Jim. I'm not saying they have made them, but the temptation is there to come up with something different. I know several collectors who would pay a (small) premium for chips with previously unknown UV marking.

I would consider it akin to hacking a computer. Not done for profit, but to show that it could be done and "get away with something" . This is one reason I have never gotten interested in UV marked chips. They weren't made to protect the customer or serve a valid gaming purpose. Similar reason for not collecting off color or psychedelic PMSC chips (unless they are pink 2.50's ).

"Laserlock" markings are something different. They offer real security protection. The difficulty for collectors is finding a way to check the markings as the equipment must be customized for each type of marking.