Translucent emerald-green on a brownish-beige ground appears to have been one of the more popular of the unusual combinations of glass overlay. This combination seems to have been favored in the mid-to later Qing period. See Moss, Graham and Tsang, The Art of the Chinese Snuff Bottle. The J & J Collection, no. 390 for a green glass on brown overlay bottle of similar form carved with a continuous design of the "Three Friends of Winter." See also, Moss, Graham and Tsang, A Treasury of Chinese Snuff Bottles, Vol. 5, Glass, no. 950, for a green overlay on blue glass snuff bottle carved with a praying mantis on a pea vine on one side and a katydid on a cabbage on the other.
The praying mantis (tanglang) is a symbol of fertility, because of the large number of eggs it lays. The symbolism is reinforced by the second syllable (lang), which is a homonym for one of the Chinese characters meaning "son." A pea pod swollen with seeds provides another symbol of fertility.