I bought these in Doug's auction in Arcadia and found I already had them in the collection. You can have the set for $60. I pay postage.

I believe the SBPC marking is for "Sam Boyd's Poker Classic". According to my Googling, this was held only in 1999.

I'm not sure whether these are in TCR or not. There is a listing for these colors with Unicorn mold, but no mention of the SBPC marks, though "Poker Tour" is mentioned.