Brazil (Minas Gerais), 960-reis, Joao Prince Regent, crowned-arms counterstamp (1808-10) on a Potosi, Bolivia, bust 8 reales, Charles IV, assayer PJ (date not visible). 26.78 grams. XF/AU counterstamp on VF host, attractively toned, no big problems, but with counterstamp obscuring the host date (just 180 visible).
Estimate: $200 - 300