GERMAN STERLING GUILLOCHE AUTOMATON SINGING BIRD BOX IN ORIGINAL PRESENTATION BOX: Iridescent singing bird housed in a green enamel and sterling box. The top centered with a carved ivory plaque (door for the bird). Key winds with bird form key. Flower form screws at the corners. Inscribed across the bottom front M.E.T. Oct. 12, 1929. In good working order. Approx. 2'' tall x 4 1/4'' x 2 3/4''. The presentation box is 2 3/4''t. x 6 1/8'' x 4 3/4''.