Faberge, jeweler to the Russian Imperial family, produced 50 eggs between 1885 and 1916 for Czars Alexander II and Nicholas II, with the Winter Egg the most precious, according to documents housed in the Russian State Archives.

• 根据俄国国家档案局提供的资料记载，卡尔·费伯奇在1885年到1916年间共先后为沙皇亚历山大二世和尼古拉二世制作过50枚复活节彩蛋，其中以这枚The winter Egg最为珍贵。