For an agate twin double gourd bottle, see Snuff Bottles in the Collection of the National Palace Museum, Taipei, 1991, Catalogue, p. 230, no. 318.
The refined, subtle and extremely discreet formalized decoration to the neck and foot of this bottle is probably best reflected in the so-called 'Palace Lotus-clad Yellow Jade Bottle' illustrated by Hugh Moss, Victor Graham and Ka Bo Tsang, A Treasury of Chinese Snuff Bottles, The Mary and George Bloch Collection, Hong Kong, 1995, vol. I, Jade, pp. 200-201, no. 81. For a blue glass double-gourd bottle with four-character Qianlong mark with gilt decoration, see Snuff Bottles in the Collection of the National Palace Museum, Taipei, 1991, Catalogue, p. 207, no. 253.
For other bottles of this popular shape with rings carved at their waists, see Hugh Moss et al, op.cit, pp. 182-185, no. 73-74.