Affiliation: | 1.Sainsbury Research Unit for the Arts of Africa, Oceania and the Americas, University of East Anglia, Norwich, NR4 7TJ, UK ;2.Materials Laboratory, Department of Archaeology, University of Cape Town, Private Bag x3, 7701, Rondebosch, Cape Town, South Africa ;3.Field Museum of Natural History, Chicago, IL, 60605, USA ;4.Centre for Anthropological Research, University of Johannesburg, Auckland Park, 2006, Johannesburg, South Africa ;5.School of Archaeology, University of Oxford, 1 South Parks Road, Oxford, OX1 3TG, UK ; |