A Gold, Gemset and Nephrite Letter Opener by Carl Faberge, Chief Workmaster: Michael Perchin, St. Petersburg 1899-1903. Photo courtesy Wartsky

the blade carved from a single piece of Siberian Jade, the handle in the form of intertwining bat wings. The three terminals on the handle are set with cabochon moonstones, whilst the centre is set with two cabochon rubies on both sides. Inventory number: 1979.18cm in length. Price on application

Provenance: Bought by Dowager Tsarina Marie Feodorovna on 17th December 1899.

Wartsky. http://www.wartski.com/