SOUTH AFRICA. Gold Natura Proof Set (4 Pieces), 2006. All NGC certified. Total AGW 1.85 oz. Mintage: 200. A highly attractive low mintage set exhibiting a finely engraved motif with frosted devices and hard mirrored fields. Each are free of tone, haze or fog. 1) 100 Rands. PROOF-69 Ultra Cameo. KM-429.2) 50 Rands. PROOF-69 Ultra Cameo. KM-428.3) 20 Rands. PROOF-69 Ultra Cameo. KM-427.4) 10 Rands. PROOF-70 Ultra Cameo. KM-426.