Brazil
Joao VI gold 6400 Reis 1818-R, KM328, MS62 NGC, a lustrous example of this elusive type struck after Joao VI became King. The design features are boldly struck and the surfaces display just a few faint contact marks. Rare in mint state. Krause catalog price(s) for this item: $2400 in VF, $3600 in EF, $5900 in UNC, $8500 in BU.
Estimate: 5000-7000 USD