A relative of yours, possibly

Think about this: someone actually was the very first person to think of doing an ad for a jewelry concern wherein facts about the business were contained in a drawing of a ring!

Maybe your great-uncle or grandpa.  Wait!  How sexist.  Maybe it was Great-Aunt Ruth, who was a pioneer in the ad biz.  Anyway, one of the great under-heralded creations of the last 30,000 years.