Compare with a similar vase from the National Palace Museum, Taiwan, included in the monochrome exhibition, Qingdai Danseyou Ciqi, illustrated in the Catalogue, 1981, p. 149, no. 89; one included in the Chinese University of Hong Kong exhibition, Qing Imperial Porcelain, 1995, illustrated in the Catalogue, no. 63; and another sold in these Rooms, 27 October 2003, lot 698.