Cleveland Museum of Art 162875 portrait mid- to late 1800s CC0 cma african-global-heritage objects-with-gravity african global heritage objects with gravity tonga ancestor figure wood carving mask pacific island polynesia ritual tribal art dark brown geometric abstract traditional culture sculpture handheld reverence male mid- to late 1800s Africa, Central Africa, Democratic Republic of Congo, Hungaan-style maker Wood and colorant Sculpture African African & Global Heritage Objects with Gravity