Yes, BB actually sold some chips to real and open casinos.
Tes, BB actually counterfitted many chips for many casinos. Mostly small denominations that were very close to the real chips used at the casinos. These counterfits were meant to fool us.
Look in TCR 6, if you have it. Look under "Casino, The" - You will see the scanned chip listed as N6100 $3. Look at the chip listed right above it N2248 $125. I challenge any chipper to correctly ID either chip, in an Ebay auction.

BB made one mistake that will help you. The obverse and reverse hot stamps are aligned on the counterfits. I called this a mistake but am not sure it was a mistake as it took a lot of time to do it. I don't know why he did it.