A jewelled two-colour gold and guilloché enamel bell-push

A jewelled two-colour gold and guilloché enamel bell-push
marked Fabergé, workmaster's mark of Victor Aarne, St. Petersburg, 1896-1908
Tapering cylindrical, overall enamelled in translucent yellow, the sides and top applied with engraved gold foliate garlands, the cabochon garnet push-piece within rose-cut diamond mount, marked under base
2 in. (5 cm.) diameter