DOMINICAN REPUBLIC. 500 Pesos, 1990. NGC PROOF-69 Ultra Cameo. Fr-13; KM-79. AGW: 0.500 oz. Mintage: 1,500. Commemorating the 500th anniversary of the evangelization and Columbian discovery of America, this vibrant Gem verges upon perfection, with tremendous frosting to the devices and a high degree of mirrored brilliance in the fields.