Blue North Face backpack with red zip pulls

I lost my blue North Face backpack yesterday around 3pm outside Blackwell's Bookshop on Broad Street in Oxford. It's a standard-size pack with a faded rain cover, two small dents on the bottom, red zip pulls, and a coffee stain on the front pocket. Inside there's a lime-green interior pocket and a dragon badge I bought on a trip, plus a few loose papers I really need back. This bag is sentimental to me—it holds field notes and a photo of my grandmother, and I’d be forever grateful if someone who found it could return it.