Found gold signet ring with ruby

I found a gold signet ring with a ruby this afternoon near Miller's Bakery on Main Street, Mansfield. It's a 14K gold ring, about 7 mm wide, with a small ruby bezel-set and a faint 'J.S.' engraving on the inner band. The ring shows a few light scratches from wear but the ruby still shines in sunlight. I'm hoping to reunite it with its owner; if you recognize it or can share a matching description, we can meet up near the Mansfield Library on Park Avenue or outside Miller's Bakery to return it.