Brass compass keychain with blue cord

Yesterday around 3pm I lost my brass compass keychain near the Kalamazoo Farmers Market on East Michigan Ave in downtown Kalamazoo. It's about 1 inch across, with a blue paracord wrap and a tiny dent on the rim. The back is engraved with the initials 'AR' and there's a faint scratch on the glass. It means a lot to me—it's a keepsake from my grandfather, and I really need it back if someone happened to pick it up.