The governor of the South African Reserve Bank, Tito Mboweni, is scheduled to step down in November. Mboweni, the first black man in the formerly racially segregated South Africa to have his signature on a South African banknote, is to be replaced by Gill Marcus, chairwoman of the South African commercial bank Absa. Mboweni has held the post of governor since 1999. His departure clears the way for a new signature variety for South Africa.