Coins of the South African rand transactions are rounded to the nearest 10c. A bi-metallic R5 coin with added security features, including a grooved edge and micro-lettering on the reverse, was introduced in 2004. The gold Krugerrand coin is produced in 1/10 oz, 1/4 oz, 1/2 oz and 1 oz denominations. Coins of the South African rand The coins of the South African rand are part of the physical form of South Africa's currency, the South African rand. In 1961, South Africa replaced the pound with a decimal currency: 100 cents (100c) = 1 rand (R1), 1 rand being valued at 10 shillings and 1 cent
Currency governments intervene in the market to buy or sell their currency to balance supply and demand at a static exchange rate. In cases where a country has control of its own currency, that control is exercised either by a central bank or by a Ministry of Finance. The institution that has control of monetary policy is referred to as the monetary authority. Monetary authorities have varying degrees of autonomy from the governments that create them. A monetary authority is created and supported by its sponsoring government, so independence can be reduced by the legislative or executive authority that creates it.