A labradorite carving of a duck, 20th century, the realistically carved seated mallard from a single piece of labradorite, with glass eyes, carved tiger's eye beak and palmate foot, the sheen of the duck's feathers suggested by the iridescent properties of labradorite, incised with monogram Gb and numbered 130 to the underside, on a malachite specimen slice base with botryoidal texture.Height 10 cm, width 18 cm