A GROUP OF FIVE STICK-PINS, one finial with oval onyx cameo head of the Medusa, two with small onyx cameos of a female blackamoor with rose-cut diamond collar and a mouse, all 19h Century; one in the style of Plisson & Hartz with a small diamond-set chimera, circa 1880, and one with an Art Nouveau style portrait medallion of a female with rose-cut diamond detail, circa 1900, signed with initials VE for Vernier (5)