Sudan
Republic Three-Piece gold & silver Proof Conservation Set AH 1396//1976, 1) 2-1/2 Pounds - Shoebill Stork, KM70, PR69 UCAM NGC2) 5 Pounds - Hippopotamus, KM71, PR70 Ultra Cameo NGC3) 100 Pounds - Scimitar-horned Oryx, KM72, PR69 Ultra Cameo NGCAs with much of the Conservation Series, the modest mintages of the gold coins in Proof format separate them from many other modern commemorative series, in this case 251 pieces for the 100 Pounds.
Estimate: 2400-3200 USD