Cuba
Republic gold Proof Piefort "Jose Marti" 50 Pesos 1990 PR67 Ultra Cameo NGC, KM-P47. Mintage: 12. A piece which is rarely found meaningfully finer, as verified by a survey of the NGC census, which reveals a single piece certified as PR68 Ultra Cameo. Bound in its designation by a minor degree of haze on the obverse, this is the first example we have been able to locate.
https://coins.ha.com/itm/cuba/cuba-republic-gold-proof-piefort-jose-marti-50-pesos-1990-pr67-ultra-cameo-ngc-/a/61180-99026.s?type=CoinArchives61180
HID02906262019
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Estimate: 4000-6000 USD