I love the little Google designs, don't you? They point out all sorts of fascinatingly irrelevant information. For example, I would never have known that today was the 166th birthday (do you still get birthdays when you're dead?) of Peter Carl Fabergé.
After the death of Alexander III, Nicholas II had one made each Easter for both his wife and mother. The tradition continued until the October Revolution, and 50 eggs were made, of which 42 have survived. The House of Fabergé made other eggs too, but these ones are known as the Imperial Eggs and I'm sure are worth a very pretty penny.