Vintage brass pocket watch with engraved initials

I found a vintage Elgin pocket watch this morning around 8:15am in the alley behind the Old Town Pawn Shop on North 3rd Street in Northeast SD. The brass case has a floral engraving and shows some wear, about 2 inches across. The white dial has Roman numerals and blue steel hands, and there's an inscription on the inner lid: 'J.R.S. 1892'. It also came with a brown leather fob chain and a faded red velvet pouch. It's a collectible piece, and I'd love to get it back to its owner, especially if someone recognizes the initials or the tiny stamp on the back—happy to meet near the East Market building to return it.