Four masterpieces of the Ching Dynasty (1644-1911 A.D.) enamelware recommended by the National Palace Museum are featured on the set of stamps. All enamelware is characterized by brilliant colors applied by hand to a bronze base. Three distinct types of enamelware have evolved.2.00 Plate and cup, champleve enamelware Chien-lung ware (1736-1795 A.D.)5.00 Gold-plated duck, cloisonne enamelware Chien-lung ware (1736-1795 A.D.)8.00 Incense burner, painted enamelware Kang-hsi ware (1662-1722 A.D.)12.00 Milk-tea pot, cloisonne enamelware Chien-lung ware (1736-1795 A.D.)