HS THC chip that's used on NBC's National Heads Up Poker Championship.
https://www.ebay.com/itm/CAESARS-PALACE-CASINO-LAS-VEGAS-500-NCV-CHIP-V7540-SU-xls/392503322264
https://www.ebay.com/itm/CAESARS-PALACE-CASINO-LAS-VEGAS-500-NCV-CHIP-V7540-SU-xls/392503322264