LIBAIRE Black Leather Back Pack

This bag is in excellent pre-owned condition - externally. The leather body and straps, and all the hardware look great! HOWEVER - there is a group of stains at the bottom of the inner lining fabric that is NOT food - but possibly some kind of make -up, nail polish or maybe an art supply. What looks like crumbs are little flecks of metallic gold. Maybe a specialist could clean this area - or maybe some creative patching? Anyway - priced accordingly. Measurements are included in photos.