Coins of the South African rand coins of the Republic were the following: The coins initially had the same size as the former South African coins. All except the and 1 cent coins were in silver. The previous South African farthing coin (¼d) and half-a-crown (s) were not continued in decimal currency. In addition, two bullion coins with denominations of 1 rand and 2 rand were issued, replacing the gold half-pound and pound coins introduced in 1952. Both the pound and the rand gold coins matched the specifications of the British half-sovereign and sovereign (minted, among others, at the Pretoria branch mint until 1932), including the
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