BRAZIL. 960 Reis, 1820-R. Rio de Janeiro Mint. Joao VI. PCGS AU-55. KM-326.1. Only light traces of friction can be seen across the design peaks while most detail remains intact. Gunmetal peripheries give way to antique silver centers, the patina demonstrating original surface quality. The undertype, a bust 8 Reales, is almost indistinguishable except for a faint silhouette in the fields.
