Watch List notes:

Brazil (Rio mint), 4000 reis, Joao Prince Regent, 1811, encapsulated NGC MS 63, tied for finest known in NGC census. Russo-571; KM-235.2. Blazingly lustrous and sharply struck, the depth of strike most apparent at about 1-2 o'clock on the obverse where the planchet is slightly concave, a lovely gem all around.

Estimate: $1750 - 2500