An identical quail-form box is in the Beijing Palace Museum, illustrated in Zhongguo Yuqi Quanji, vol. 6, pl. 106. A pair of these boxes from the T. Y. Chao collection was sold at Sotheby's Hong Kong, 19 November 1986, lot 144, and illustrated by R. Kleiner, Chinese Jades from the Collection of Alan and Simone Hartman, Hong Kong, 1996, pl. 196. Another pair is illustrated by James Watt, Chinese Jades from the Collection of the Seattle Art Museum, Washington, p. 94, no. 73.