A Necklace with matching Earrings, attributed to Sybil Dunlop or Harold Stabler, necklace with central black opal with foliate surround set with chalcedony, amethyst, tourmaline and blister pearls, suspended from smaller black opal, the chain with elaborate wrought links and set with further stones, the pendant earrings ensuite, the reverse with applied wirework monogram, in fitted case, 1910/20 (3)