25 Rand Walter and Albertina Sisulu

Walter Sisulu spent 26 years imprisoned on Robben Island alongside Nelson Mandela, and was released in 1989 as part of a calculated government move to test public reaction before the larger releases that followed. He and Albertina — herself repeatedly banned, arrested, and held under house arrest during his imprisonment — are among very few couples whose individual political records each warrant serious historical attention on their own terms. This issue commemorates both.

The .9999 fineness places it among South Africa's purest gold coin issues of the modern era, minted the same year Albertina died, at 92.