Cf. other Qianlong-marked examples of this shape and with the teadust glaze, one from the Robert Chang Foundation, was sold in these Rooms, 31 October 2000, lot 820; and another was sold, 3 November 1998, lot 939. Compare also the Yongzheng example in the National Palace Museum, Taibei, included in Qing Kang Yong Qian Mingci Tezhan, A Special Exhibition of Qing Dynasty Kangxi, Yongzheng and Qianlong Ceramics, 1986, illustrated in the Catalogue, no. 56.