1778, Bolivia, Charles III. Colonial 4 Reales (Spanish ½ Bust Dollar) Coin. R! This currency was legal tender in the USA until 1857! Mint Year: 1778 Mint Place: Potosi Reference: 1778-PR, KM-54. R! Denomination: 4 Reales (Spanish ½ Bust Dollar) Condition: Light scratches in obverse fields, otherwise a nicely toned XF! Weight: 13.20gm Diameter: 34mm Material: Silver Obverse: Early ...