Brass house keys on red striped keyring, lost

I lost my brass house keys yesterday around 3pm outside the Starbucks on Massachusetts Ave in downtown Indianapolis. The set is on a sturdy brass ring with a red striped fabric key strap that’s a bit frayed. There are a couple of distinguishing bits: a blue enamel compass charm and a tiny tag engraved with my initials 'M.N.' on the ring, plus a dent in the Yale key from a fall. The keys open my apartment and mailbox, and they’ve got sentimental value because the keychain was a gift from my grandmother. If you found them, I’d be really grateful to get them back.