Small brass compass in leather case

I lost a small brass pocket compass yesterday around 3pm near the Bon Accord Centre on Guild Street, Aberdeen. It's about the size of my thumb, tucked in a weathered brown leather pouch, and the lid bears a faded crest with the initials 'KP' engraved. The brass is a bit scratched and the needle sometimes sticks when I tilt it. It matters a lot to me because it belonged to my late grandfather and was a gift, so I’d be incredibly grateful to get it back. If anyone found it, please get in touch—I’ve probably dropped it near a bench or by the bus stop outside the railway station.