Lot 660. Potosi, Bolivia, gold bust 8 escudos, Charles IV (laureate bust), 1791PR, very rare one-year type, NGC AU 53.Janson-72.3.1; KM-81; Cal-1694.Bold strike with full details (lightly worn on high points), a few minor marks including weight-adjustments on reverse, decent luster for the grade. ($3500-7000)