Vintage Sterling Silver Cameo Locket with Chain

This is a large Sterling Silver oval locket with a cameo front.
It hangs from a 22 inch sterling silver chain. It can hold two photos.
It opens and shuts perfectly and is in excellent condition.

Locket hallmarked: Birmingham 1975
Marker’s mark: ZJ
Measurements: 40mm x 30mm approx (measured across the back)
Chain length: 22 inches / 56cm
Chain stamped: STERLING
Locket and chain weight: 23.2 grams