Most Fabergé eggs were created for the Russian royal family, a new one every Easter from 1885 to 1917. There are however a few that were designed for other clients, and one has surfaced in the French branch of the Rothschild family. Commissioned for the engagement of Germaine Halphen to Baron Edouard de Rothschild in 1902, the pink egg is a clock with a crowing cockerel. It will be auctioned off by Christie’s in November, estimated price is £9 million.