The Crystal lounge chips aren’t listed in the chip guide. These are non denomination and the same on the front and back. The Sky— need a home too. I do think they are from the skyline, Great Falls or Billings but yet to be proven. If anyone would like to submit the Crystal Lounge you have my permission to do so. They are mine for the time being and are beautiful and I’ve never seen sm circle chips in this new condition before, really nice sharp and clean !!! Torrey