Sterling silver moon pendant necklace

I lost my sterling silver necklace yesterday around 3pm near the downtown Pittsburg Public Library on Broadway Street. It's an 18-inch chain with a small crescent moon pendant; the moon has a tiny heart engraving on its lower curve and the back is engraved with my initials 'P.P.'. The chain shows a bit of tarnish and there’s a tiny scratch near the clasp. It was a gift from my grandmother and means a lot to me—really hoping it turns up. If you found something matching this description around Broadway Street or the Pittsburg Public Library area, please let me know.