Found vintage coin collection in red display case

I found a small vintage coin collection in a red display case this afternoon around 4pm, outside The Antique Gallery on Quintard Ave in the Gadsden-Anniston area. The case is about 6 inches long with a glass top and a plush red velvet lining; inside are copper and silver-toned coins with nice patina, plus a tiny brass tag tucked under the lid that reads 'J.R.' One of the coins has a faint heart-shaped notch on the edge—it's pretty distinctive. I’m hoping to locate the owner; if you recognize this setup or the tag, reach out and I’ll gladly return it.