An enamelled and gem-set coloured gold mounted double nephrite bell push by Carl Fabergé, Moscow, 1896-1908. Photo courtesy Wartsky

of rectangular form, the top decorated with oyster coloured enamel plaques beneath gold cagework set with rose diamonds, centring an elliptical pattern of coloured gold swags, with two raised mountsholding the cabochon garnet and moonstone pushes, the sides banded with ribbon tied gold reeding, supported on four gadrooned gold feet. 11.2 by 7.7 by 2.3 cms. Price on application

Wartsky. http://www.wartski.com/