A similar pair of dishes from the Baur Collection, Geneva, are illustrated by J. Ayers in the Catalogue, vol. III, nos. A476-477, where the author refers to the List of Porcelains supplied to the Court as compiled by Tang Ying, the director of the factory, in 1729 including purple-brown glazed wares with incised designs. A pair from the Meiyintang Collection is illustrated in the Catalogue, Volume Two, p. 229, col.pl. 892. Another from the Percival David Foundation is included in the Catalogue, section 6, nos. B585 and 586. A single example from the National Palace Museum, Taiwan, was included in the Special Exhibition of Ch'ing Dynasty Monochromes, Catalogue, p. 99, no. 45. Another was included in the Hong Kong Museum of Art, Monochrome Exhibition, 1977, Catalogue, no. 30 and illustrated in An Anthology of Chinese Ceramics, no. 120.