Cleveland Museum of Art 164593 portrait possibly early 1900s CC0 cma african-global-heritage symbols-patterns portraits design-assets objects-with-gravity african global heritage symbols patterns design assets objects with gravity mask tribal wood carving geometric pattern ritual dark gray culture emangungu possibly early 1900s Africa, Central Africa, Democratic Republic of Congo, Bembe-style maker Wood, kaolin, colorant, and iron Mask African Decorative African & Global Heritage Symbols & Ornament Faces in Time The Maker’s Cabinet Objects with Gravity