I believe that every chip in the scan below was a custom made chip. I have seen catologs that advertize the sale of these chips as non-duplicative. The manufacturer states that there is almost a limitless number of font style/inlay color/chip color/stick color combinations in order to make a custom chip for any buyer.

Regarding the crest & seal chips in your auction, Mike Spinetti (the seller) bought a load of Galveston stick c&s chips. I believe he may have photos as support (I could be mistaken). Bottom line is Mike Spinnetti is an honest person. I would believe what he says.