Cuba
Republic Proof "El Escorial" 50 Pesos (5 oz) 1992 PR68 Ultra Cameo NGC, KM-Unl. A type unlisted in the Standard Catalog of World Coins.
From the El Don Diego Luna Collection
https://coins.ha.com/itm/cuba/cuba-republic-proof-el-escorial-50-pesos-5-oz-1992-pr68-ultra-cameo-ngc-/a/61155-97238.s?type=CoinArchives61155
HID02906262019
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Estimate: 100-150 USD