A recipe for Caviar Sandwiches with eggs

Caviar Sandwiches with eggs. Cut slices of bread in crescent-shaped pieces, butter one side and toast. Have ready two hard-boiled eggs, remove yolks, put them through sieve, chop whites very fine, and spread toast with layer of caviar; then sprinkle over first a little of whites, then a little of the yolks of the eggs. Put over in the form of a ring a piece of onion, the onion having first been cut into thin slices, and then separated.