For a bottle of squat pear-shape, bearing a six-character Daoguang mark but similarly painted with birds on each side, see Robert W. L. Kleiner, Chinese Snuff Bottles from the Collection of John Ault, 1990, Catalogue, fig.138. Interestingly, another bottle painted on each side with doves or pigeons bearing a Yongle tang zhi mark (see lot 3) was offered at Sotheby's New York, June 27, 1986, lot 206, suggesting, perhaps, that this hall ordered animal bottles

See also Hugh M. Moss, Snuff Bottles of China, pp. 128-129, pl. 12A, no. 307 for another Daoguang-marked bottle, but depicting a dog on the reverse, and another illustrated by Robert Kleiner, The Bellis Collection, Catalogue, no. 59