The lost Fabergé Imperial eggs
The lost eggs include the 1888 Cherub with Chariot, the Nécessaire from 1889 and the 1903 Royal Danish, each of which could be worth up to $30 million (£24.6m). The Mauve egg, which dates from 1897, is missing but its surprise, a heart-shaped photo frame, has survived. The frame was purchased by Malcolm Forbes in 1978 and sold to the Fabergé Museum in Saint Petersburg, Russia in 2004.