Keys with red tag and brass house key

I lost my keys yesterday around 3pm near the Champlain Centre mall on Route 3, in the parking lot by the main entrance. They’re on a red plastic tag labeled HOME, with a small brass house key and a second key for the apartment. The tag is scuffed and the second key has a tiny circular dent from a previous drop — they jingle when I walk. This set has sentimental value; it was a gift from my grandmother, and I really need them back.