Watch List notes:

Brazil (Rio mint), 960 reis, Joao VI, 1820-R, struck over a Lima, Peru, bust 8 reales of Ferdinand VII, dated 1819. Russo-478; KM-326.1. 27.13 grams. Lightly rainbow-toned AU with underlying luster, much undercoin detail (the date bold).

Estimate: $150 - 225