Brazil (Rio mint), 960 reis, Joao VI, 1820-R, struck over a Spanish colonial bust 8 reales, encapsulated NGC MS 62. KM-326.1; Russo-478. Lustrous and lightly toned, very attractive, the undercoin details almost completely gone except for what looks like a bold "01" (date?) in the top arm of the cross. (Estimate: $300 - 450)