Fabergé’s workmaster Mikhail Perkhin made this silver gilt and enamel desk clock in about 1890. Of square from, it is enamelled in translucent blue over a wavy sunburst guilloché ground to which radiating tapering bands have been applied. The circular silver laurel-wreath bezel encloses a white dial with Arabic chapters and pierced gold hands. The clock is 10.7cm (4.2in) high. It is estimated at £100,000-150,000 (US$160,000-230,000; €120,000-170,000).