Silver locket with initials engraved

I lost my silver locket yesterday around 3pm on Main Street in downtown Manchester, NH, near the Public Library. It's a small, oval-shaped piece, about the size of a quarter, with a gentle dent along the lower edge and a bright polished finish. On the back are the initials 'P.P.' engraved, and inside there's a tiny pressed forget-me-not from my grandmother's garden. This locket means the world to me and it was a gift, so I’m really hoping someone who finds it can return it. If you think you’ve seen it, feel free to reach me at [email protected].