Watch List notes:

Brazil (Rio mint), 960 reis, Joao VI, 1821-R, struck over an Argentina (River Plate Provinces) "sunface" 8 reales, Potosi mint, 1813J, also with die-clash error, NGC MS 63.Gomes-25.18; Russo-479.Deeply rainbow toned over most of the surfaces, fully detailed strike yet with traces of important undercoin visible (not mentioned on label) including sunface and date as well as die-clash evidence on obverse, really a neat coin in a lot of ways.
($300-450)