Brazil
Pedro I gold 6400 Reis 1823-R, KM370.1, Russo-598, AU Details - Surface Hairlines NGC. Cleaned long ago with partially retoned fields. Redesigned military bust of Pedro I. Full strike on the reverse with problem free fields. Reported mintage of a mere 931 pieces. Krause catalog price(s) for this item: $4950 in VF, $6600 in EF, $9900 in UNC.
Estimate: 8000-10000 USD