Might be, Robert Eisenstadt's
Antique Gambling Chips &Â Gambling Memorabilia Web Site was a little confusing to me. The one example he has said it was the closest thing he had found to Borlands #17. I found a few of these and was just wondering about them. I'm no mold expert but I had not seen one before.

Nice chips but a bit slippery in stacks IMO.

I have some traders if anyone needs an example.