"René Lalique Opalescent"
Cup "parakeets" in opalescent patinated molded-pressed glass Diam. : 24.5 cm This model created on October 12, 1931, appears on the 1937 price list, not continued after 1947: Félix Marcilhac, René Lalique, catalog Raisonné de l'Oeuvre de Verre, Les Éditions de l'Amateur, Paris, 2004 , No. 419.