I was told these were a new issue and I don't know if you can tell by the scan but the old one is a duller red and the new is bright red. The yellow looks brighter also. You can even spot them in the racks with the different edge color. No security mark on either one. I only have one spare and Greg gets it if he wants it.

There also were new $2.50 chips at Ballys but I couldn't spot any difference except the security mark was duller on the old chip but that can happen within a run.