Brazil (Rio mint), 960 reis, Joao VI, 1820-R, struck over a Potosi, Bolivia, bust 8 reales of Charles IV, assayer PJ, NGC MS 62. Russo-478; KM-326.1. Somewhat frosty with luster, fully detailed overstrike with traces of under-coin visible, particularly the assayer PJ.
Estimate: 200 - 300 USD