A hardstone micromosaic brooch/pendant, with chain, 19th centuryThe central oval plaque depicting the Doves of Pliny, within a border of half-pearls, and outer scrolling border, with glazed panel to the reverse and detachable pearl-set bale, all suspended from a fine curb-link chain, pendant approximately 74.5 x 57.5mm, stamped with a French gold control mark, chain length approximately 52cm, stamped '15CT', pearls untested (2)