Portugal
Republic gold Proof "Discovery of Madeira" 100 Escudos 1989-INCM PR70 Ultra Cameo NGC, KM647b, Fr-163. Mintage: 2,996. Denoting the discovery of the archipelago of Madeira, this commemorative issue features the Santa María at full sail. AGW 0.7075 oz.
https://coins.ha.com/itm/portugal/portugal-republic-gold-proof-discovery-of-madeira-100-escudos-1989-incm-pr70-ultra-cameo-ngc-/a/3096-31152.s?type=CoinArchives3096
HID02906262019
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Estimate: 600-800 USD