"Do you suppose that the Bud Jones Company had some of these H&C chips on hand to use for color matching for the Nevada Mold issue and just stamped them to keep them from walking off?"

If so, they would have only had 1 or 2.
when GPI tries to match other chips, the salesman buys 1. If its given to him he would be expected to bring it back. Too much trouble. Buy it and keep it in his samples.