Two striking images - from the 1940s and the 1960s - help reveal the rich but still emerging history of street photography in the country.
Images of white Namibian farmers and their workers and a collection of portraits by travelling black photographers form part of the early archive.
The gift of his images lies in their depiction of the social worlds that apartheid sought to destroy, but that live on through the photographs.
No South African photographer leaves a more substantial legacy than Santu Mofokeng. He was adept at mapping interior worlds through haunting images of black life and, above all, his landscapes.