Vintage Filigree Open Cage Heart Necklace

Vintage necklace. The heart comes off of chain. Heart has a hinge to open this and place something inside. Could be used as a scent locket of essential oils. It has an unknown makers mark. This has an antique finish. This doesn’t close perfectly flush. Chain approx 24” long Heart is approx 2” wide x 1 3/4” tall This has a open work filigree design and basket weave center. This is kind of like pierced metal locket.