an Entity references as follows:
The Colonnade egg is a jewelled enameled Easter egg made by Henrik Wigström under the supervision of the Russian jeweller Peter Carl Fabergé in 1910. The Fabergé egg was made for Nicholas II of Russia, who presented it to his wife, Alexandra Feodorovna to celebrate the birth of their only son, the tsarevich Alexei. As a clock-egg, the Colonnade egg contained no surprise.