A GROUP OF ANTIQUE BROOCHES, REMOUNTED AS SLIDES, COMPRISING: A CABOCHON AMETHYST CIRCULAR BOSS DESIGN, A DIAMOND AND GARNET CIRCULAR LOCKET-BACK; A BLACK ONYX CIRCULAR PLAQUE WITH HALF-PEARL STAR MOTIF, ONE OF FLOWERHEAD DESIGN; AND A 19TH CENTURY ITALIAN MOSAIC OVAL BUTTON DEPICTING A PEASANT WOMEN, THE REVERSE WITH ROME MARK.