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 substitution On the other hand, currency substitution leads to the loss of seigniorage revenue, the loss of monetary policy autonomy, and the loss of the exchange rate instruments. Seigniorage revenues are the profits generated when monetary authorities issue currency. When adopting a foreign currency as legal tender, a monetary authority needs to withdraw the domestic currency and give up future seigniorage revenue. The country loses the rights to its autonomous monetary and exchange rate policies, even in times of financial emergency. For example, former chairman of the Federal Reserve Alan Greenspan has stated that the central bank considers the effects of