Red keyring with brass house key

I lost my red keyring with a brass house key yesterday around 3pm near the Chillicothe Public Library on Main Street, by the coffee shop at the corner. It's a bright red plastic loop with a brass house key that has a small dent near the tip, plus a blue enamel tag engraved with 'NP' and a tiny USB drive. On the ring are my apartment keys and my grandfather's mailbox key, so it's not just a bunch of metal—it feels sentimental. If someone found it, drop me a note here and we can arrange the return.