Wonderful hardstone figure of Muscovy duck, with chalcedony body, jasper neck and crocidolite tail feathers mounted paste eyes and gilt feet, length 6.8 cm Provenance: Sotheby's Belgravia, lot 558, 6th Sept 1979, then family descent note: identical model of hardstone duck, Kenneth Snowman, the Art of Carl Faberge, pl. Xxxvi