For a discussion of the Master of the Rocks School of carving, see Moss, Graham, Tsang, A Treasury of Chinese Snuff Bottles: The Mary and George Bloch Collection, Hong Kong, 1995, Volume. 1, pp. 340-373, nos. 133 - 143. This impressive example of the school depicts the monkey who stole the peaches of longevity from the garden of Xiwangmu, Queen Mother of the West, offering one to the God of Longevity.
For a similar Master of the Rocks bottle, in the same material, see L. S. Perry, Chinese Snuff Bottles: The Adventures and Studies of a Collector, Rutland, Vermont, 1960, p. 106, no. 30.