Krugerrands

A South African coin first minted in 1967 to help market South African gold By 1980 the Krugerrand accounted for 90% of the global gold coin market.
The name itself is a compound of Kruger(the man depicted on the obverse) and Rand, the South African unit of currency.
Specification 1 troy ounce of gold and 1.09 troy oz in weight (33.93g) Diameter of 32.6mm Thickness of 2.84mm. 91.67% Au, 8.33% Cu.