Brazil
Republic gold 10000 Reis 1911, KM496, Russo-704, MS61 NGC. Mintage: 137. Fully defined and likely a bit nicer than the Norweb specimen that was described as Extremely Fine with a "rough planchet". An impressive rarity with the list of survivors likely just breaking into the double digits, but stopping shortly thereafter.
Estimate: 4000-5000 USD