In my opinion, the only two crest & seals made by USPC that are truly generics are the Florida Palms and the Sailing ships.

According to a catalog by BC Wills, even the number in stick box chips are custom orders. No two orders of the stick box chips would ever be exactly the same. Of course Gene feels that is BS.
I'm sure the cues and balls chip was ordered by some billiard parlor with a card room in the rear. The horseshoe chip was sent to Thermopolis, WY --- definitely a custom.