Gold lacquer trumpet with engraved initials

I lost my gold lacquer trumpet yesterday around 3pm in downtown Pittsburgh. It's a Yamaha student trumpet; the bell has a tiny dent near the first valve and some lacquer wear. The bell is engraved with the initials 'N.R.' and the black hard case has a bright red interior and a zipper pull that's a bit loose. I think I last had it outside Heinz Hall on 6th Avenue after rehearsal, near the Cultural District. This trumpet means a lot to me—it's a gift from my grandfather, and I really need it back for my college auditions next week.