Previously sold at Sotheby's Hong Kong, 13 November 1999, lot 372.
Chen Guozhi can be identified as the well-known ceramic carver, particularly those of biscuit porcelain wares, who was active during the late Daoguang period. An example of a biscuit brushpot illustrated by S. Kwan, Imperial Porcelain of Late Qing, Art Gallery, The Chinese University of Hong Kong, 1983, p. 18, fig. 4; and a turquoise enamelled brushpot bearing the unusual mark of Daqing Daoguang Chen Guozhi zao, 'Made in the Daoguang period of the Great Qing dynasty by Chen Guozhi', in the Baur Collection is illustrated by J. Ayers, Chinese Ceramics in the Baur Collection, Geneva, 2000, p. 236, no. 340 (A658).