Black leather briefcase with brass buckle

I lost my black leather briefcase yesterday around 3pm near St Nicholas Market on Corn Street in Bristol. It's a medium-sized, genuine leather briefcase with a brass clasp and a small scratch along the bottom edge. Inside there's a red Moleskine notebook with my initials 'PP' on the cover and a USB drive with some client documents. The lining is a dark burgundy fabric, and there's a torn pocket that used to hold spare business cards. It has sentimental value because the notebook contains a few personal notes from my grandmother; I really need it back to finish a project. Please let me know if you see it.