This one was on a William III sixpence. The guy that made this one was pretty inept, he didn't flatten the side that he engraved properly and some of the original design shows through, also he didn't plan out his engraving properly and he ran out of room to engrave his name (I. Black) and he had to add the "k" of his name above the rest of it. I'm guessing by the fact that he didn't drill a hole for it to be worn, that this item never made it to his loved one. If he did offer it to her she'd probably dump him on the spot
