DAOGUANG SEAL MARKS IN UNDERGLAZE BLUE AND OF THE PERIOD (1821-1850)

A similar Daoguang-marked dish, from the Simon Kwan Collection, is illustrated in Imperial Porcelain of the late Qing, Chinese University, Hong Kong, 1983, no. 15; and another from the Addis Bequest in the Victoria and Albert Museum, is illustrated by R. Kerr in Chinese Ceramics, Porcelain of the Qing Dynasty, London, 1986, pl. 48.