Hungary
Republic gold 500 Forint 1967-BP, KM580, Proof 67 Cameo NGC, a superb example of this commemorative marking the 85th birthday of the composer, Zoltan Kodaly. Very scarce with a mintage of 1000. Krause catalog price(s) for this item: $1150 in UNC, $1200 in BU.
Estimate: 2500-3000 USD