Brass compass in leather pouch with koi pin

I found a small brass compass in a cracked leather pouch this afternoon around 4:15 pm, tucked under a bench outside Riverside Market on Main Street in Heartland Florida. The compass is brass with a green patina, about the size of a large coin, and the glass face is a touch scratched but still readable. The inner flap of the pouch has a faded stitched initials 'AR'. There's also a tiny enamel pin shaped like a koi fish in blue and white attached to the pouch strap. It looks well-used but still functional. If this is anyone's, I hope it can find its way home soon.