Historicism medallion pendant with cameo and enameled decorations,

Historism medaillon pendant with gem cameo 'Portrait of a lady with gold jewels' surrounded by black enamelled decorations, 18K yellow gold, 13.7 g, 5.2x3 cm, beautiful engravings, backwards foldable with 2 photoinlays, late 19th century, signs of age and wear, cameo has slipped down in the frame, enamel partly chipped.