Lot Essay
A very similar ewer and cover, also without reign mark, which is dated to the Yongzheng period, is illustrated in Zhongguo guojia bowuguan guancang yangjiu congshu - ciqi juan, Qing dai, Shanghai, 2007, p. 110, no. 72. The shape and design continued into the Qianlong period, as represented by the celadon-glazed example with a Qianlong six-character seal mark, illustrated in An Exhibition of Important Chinese Ceramics from the Robert Chang Collection, Christie's London, 2-14 June 1993, no. 66, pp. 143-44.