Peru
Republic gold 50 Soles 1961/51 MS66 NGC, Lima mint, KM230. Clear 1961/51 overdate. Gem Mint state with unusually vibrant surfaces virtually devoid of any contact marks, as expected for the technical designation. The scarcer overdate variety for this elusive date - mintage is a reduced 1,110 pieces -, conditionally very rare in this superb quality with only 2 coins currently certified finer by NGC from a total population of just four examples.
Estimate: 1500-2000 USD