Silver trumpet with engraving, lost near Inner Harbor

I lost my silver Yamaha trumpet yesterday around 3pm outside Harborplace on Pratt Street, along the Inner Harbor promenade. It's a bright silver Bb trumpet with a few wear marks; there's a small dent near the bell and the mouthpiece has the initials 'A.R.' engraved on it. It comes in a black hard case with a red interior. This trumpet means a lot to me—it was a gift from my grandfather and I played it in my high school jazz band. If anyone found it, I’d really appreciate getting it back.