British passport—burgundy cover near Oxford train station

I lost my British passport yesterday around 4pm near the Covered Market entrance on Cornmarket Street, Oxford. It's a standard UK passport with a burgundy cover; inside is my visa page and the photo page. The cover has a small coffee stain on the bottom edge and a tiny blue sticker with my initials 'AO' tucked into the back cover. I really need it back—I'm traveling next week and this is my only form of ID. If anyone found it, please drop it off at the Oxford City Council Lost and Found or message me here.