BOLIVIA. 8 Escudos, 1790/89-PTS PR. Potosi Mint. Charles IV. NGC EF Details--Obverse Scratched. Fr-6; KM-68. The overdate is weak. A moderately struck coin with some adjustment marks through the obverse center and one short scratch behind the head. The coin is attractively toned with dark orange color in the protected areas of the periphery.