20 Rand Mandela Birth Centenary

The 2018 commemorative issue marking Nelson Mandela's centenary was an unusual production decision for the South African Reserve Bank — a circulating legal tender note built around a commemorative premise, rather than a separate collector issue. The shift to a hybrid polymer-paper substrate for this series reflected lessons drawn from damage and counterfeiting patterns in the preceding Mandela 90th birthday issues, and the South African Bank Note Company handled the full run domestically.

12.175 million printed is a modest figure for a circulating denomination, and hoarding by the public on release day was immediate and predictable.