Switzerland
Confederation gold 100 Francs 1925-B, KM39, MS64 NGC, fully brilliant and attractive with just a few tiny contact marks. One of the classic gold rarities of the 20th century and a key type in the Swiss series. Krause catalog price(s) for this item: $6000 in VF, $7500 in EF, $9000 in UNC, $12500 in BU.
Estimate: 10000-12000 USD