Lost grandmother's violin in a black velvet-lined case near a bench by the park at Chesapeake Bay in Annapolis.

I lost my grandmother's violin, which is very special to me and was housed in a black velvet-lined case. I believe I may have left it on a bench near the park by the Chesapeake Bay while enjoying the beautiful weather last week. If anyone has seen it or knows where it might be, I would be incredibly grateful for any information!