Black keyring with brass compass charm

I lost my keys yesterday around 3pm near the Morgantown Public Library on High Street. The ring is silver, medium size, with a black USB drive and a brass compass charm that rattles when I shake it. There are about six keys on it, including a front-door key with a chipped tip and a car key with a gray silicone cover, plus a faded red vinyl tag with the initials 'L.M.'. This set has sentimental value and I really need them back to get to work and take my groceries home.