A CIRCULAR GOLD-MOUNTED HARDSTONE SNUFF-BOX, the Roman micro-mosaic cover depicting the Doves of Pliny, the walls and base set with panels of various hardstones in the style of Neuber, numbered 1 to 16 around the base with a central lapis lazuli plaque, the mounts chased and engraved with flowers, foliage and berries on a matt ground (several panels cracked), Vienna, 1800, maker's initials IWS