CHINA, QING DYNASTY, DAOGUANG SIX-CHARACTER SEAL MARK IN UNDERGLAZE BLUE AND OF THE PERIOD (1821-1850)

A similar pair from the Edward T. Chow collection is illustrated by M. Beurdeley and G. Raindre, Qing Porcelain, Fribourg 1986, pl.246; another from the Simon Kwan Collection, was exhibited at the Chinese University of Hong Kong, Imperial Porcelain of the Late Qing, 1983, illustrated in the Catalogue, no. 28, and sold in our Singapore Rooms, 30 March 1997, lot 384; and a further example was exhibited at the Hong Kong Museum of Art, Wonders of the Potter's Palette, and illustrated in the Catalogue, no. 101.