JIAQING SIX-CHARACTER SEAL MARK IN IRON-RED AND OF THE PERIOD (1796-1820)

Compare with several similarly decorated Jiaqing-marked vases of differing shapes in the Beijing Palace Museum Collection, illustrated in Miscellaneous Enamelled Porcelains, Plain Tricoloured Porcelains, The Complete Collection of Treasures of the Palace Museum, Shanghai, 2009, nos. 166-169.