There are a number of eighteenth and nineteenth-century boxes that incorporate mercury-activated waterfalls and waterwheels. For other examples see Andrew Pekarik, Japanese Lacquer, 1600-1900: Selections from the Charles A. Greenfield Collection (New York: The Metropolitan Musuem of Art, 1980), fig. 25, p. 30; Anne Yonemura, Japanese Lacquer (Washington, D.C.: The Freer Gallery of Art, 1979), no. 25, pp. 52-53. For another example in this sale see lot ---.