<P> 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 gold alloy (crown gold) with a fineness of 22 carat (91.67%). The reverse of the gold rand coins features the well - known springbok illustration designed by Coert Steynberg for the 5 - shilling coin introduced in 1948 . </P> <Table> Specifications of gold Rand coins <Tr> <Th> Denomination </Th> <Th> Diameter (mm) </Th> <Th> Thickness (mm) </Th> <Th> Mass (g) </Th> <Th_colspan="2"> Fine gold content </Th> </Tr> <Tr> <Th> (g) </Th> <Th> (oz t) </Th> </Tr> <Tr> <Th> 1 R </Th> <Td> 19.43 </Td> <Td> 1.09 </Td> <Td> 3.9936 </Td> <Td> 3.6608 </Td> <Td> 0.1177 </Td> </Tr> <Tr> <Th> 2 R </Th> <Td> 22.00 </Td> <Td> 1.83 </Td> <Td> 7.9873 </Td> <Td> 7.3217 </Td> <Td> 0.2354 </Td> </Tr> <Tr> <Td_colspan="6"> Maximum dimensions </Td> </Tr> </Table> <Tr> <Th> Denomination </Th> <Th> Diameter (mm) </Th> <Th> Thickness (mm) </Th> <Th> Mass (g) </Th> <Th_colspan="2"> Fine gold content </Th> </Tr> <Tr> <Th> (g) </Th> <Th> (oz t) </Th> </Tr>

When did south africa start producing its own coins