Compare the same composition of the design with similar ceramics enamelled with a turquoise-ground, illustrated in Guanyang Yuci, The Forbidden City Publishing House, 2007, pp. 207-209. Also see the original draft of the pattern, depicting a white-browed thrush perched on flowering wisteria branch, op. cit., p. 206. An example is in the Percival David Foundation, illustrated by R. Longsdorf, 'Dayazhai Ware: Porcelains of the Empress Dowager', Orientations, 1992, p. 55, fig. 26.