The .9999 fine standard used here was adopted by the Royal Canadian Mint in the 1980s as a direct competitive challenge to the South African Krugerrand's .9167 fineness — a purity claim that became central to Canadian bullion marketing and eventually pressured other sovereign mints to raise their own standards.
The .9999 fine standard used here was adopted by the Royal Canadian Mint in the 1980s as a direct competitive challenge to the South African Krugerrand's .9167 fineness — a purity claim that became central to Canadian bullion marketing and eventually pressured other sovereign mints to raise their own standards.