COSTA RICA. 1000 Colones, 1970-BCCR. NGC PROOF-68 Ultra Cameo.Fr-23; KM-199. AGW: 4.3126 oz. Mintage: 3,507. Commemorating the 150th Anniversary of independence in 1821. A stunning and very impressive issue, with sharp cameo contrast and an appealing sunface design. <p>