Found vintage coin collection with pocket watch

I found a small vintage coin collection this afternoon around 3:15pm behind the Riverside Antique Market on Main Street in Jackson. The stash sits in a worn leather binder with a blue velvet pouch labeled 'Est. 1923' tucked inside, plus a silver pocket watch engraved with the initials 'A.J.' The coins range from early 1900s pennies to a couple of foreign pieces, all with a warm patina and careful handling marks. One page in the binder has a handwritten index, which I think is a clue to the owner. I'd love to reunite these with the rightful collector - they clearly mean a lot to someone.