Silver heart pendant necklace found in Sioux City

I found a silver-toned heart pendant necklace this afternoon around 3:15pm near the Main Street entrance to the Sioux City Public Library on Court Street. My necklace features a chain about 18 inches, sterling silver, with a simple lobster clasp that shows a little wear from daily use. The pendant is a delicate hollow heart, about the size of a nickel, with a tiny engraving on the back—'M+L'—that might help identify ownership. It's in decent condition aside from mild tarnish on the chain. If this sounds like yours, send me a quick message here and we’ll arrange a safe handoff to get it back to you.