Cleveland Museum of Art 168735 portrait late 1800s–early 1900s CC0 cma african-global-heritage portraits objects-with-gravity african global heritage objects with gravity yoruba ivie sculpture wood statue figure ritual mask tribe culture art dark brown feathered headdress ancient nigeria traditional anthropomorphic power nkisi late 1800s–early 1900s Africa, Central Africa, Republic of the Congo, Kongo-style maker Wood, feathers, organic material (including resin), iron, and possibly porcelain Sculpture African Decorative African & Global Heritage Faces in Time Objects with Gravity