[Merton D. Simpson, New York, until 1965]; Nelson A. Rockefeller, New York, 1965, on loan to The Museum of Primitive Art, New York, 1965–1978
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Thompson, Robert Farris, and Joseph Cornet. Four Moments of the Sun: Kongo Art in Two Worlds. Washington, DC: National Gallery of Art, Washington D.C., 1981.
MacGaffey, Wyatt, and M. Harris. Astonishment and Power. Washington, D.C.: Smithsonian Institution Press, 1993.