A rare antique 15ct book locket opening to reveal three book hinged leaves that hold six photographs. Beautiful hand chasing and engraving to the outside. In lovely condition. Length: 22.60mm. Width: 19.12mm . Depth : 5.37mm.  Total weight: 12.2gms (book leaves contain paper and a small gilt metal slide the paper sits on) . Stamped maker KV Patent. Wonderful on a chain worn long or short.