Brown leather briefcase with brass hardware, initials P.P.

I lost my brown leather Samsonite briefcase yesterday around 3pm outside the Lewis & Clark Library on Last Chance Gulch in Helena. It's a mid-size, slightly worn bag with brass zippers and a small scuff on the bottom corner. Inside there’s my laptop charger, a stack of client folders, and a little handwritten note from my grandmother tucked in the inner pocket—means a lot to me. A blue Post-it on the inside lid has my initials 'P.P.' in blue ink, and the handle has a tiny repair with pink thread that I purposely did not fix yet. Please, if you found it, contact me ASAP. It contains work documents and a sentimental keepsake; I’d be so grateful to get it back.