It is very unusual to find bowls of this type bearing Yongzheng six-character marks, as they are generally found later in the Qing Dynasty. It appears that the design on the current bowls is derived from earlier Kangxi examples, which are decorated in underglaze copper red on white-glazed porcelain, such as the one in the Shanghai Museum, illustrated in Kangxi Porcelain Wares From the Shanghai Museum Collection, The Woods Publishing Company, Hong Kong, fig. 75-1, page 112.
A bowl of identical shape and design, but bearing a Qianlong mark, was sold at Sotheby's New York, 8th May, 1980, lot 51; a pair of Daoguang examples bowls from the Edward T. Chow Collection were sold at Sotheby's Hong Kong, 19th May, 1981, lot 535. Compare also a Daoguang bowl of this pattern from the Simon Kwan collection, included in the Chinese University of Hong Kong Exhibition Imperial Porcelain of the Late Qing, Hong Kong, 1983, cat. no. 63.