Switzerland. Helvetia Gold Proof Set: 1/10, ¼, ½ and 1 Unze, 1986-AH. Bruce-X#MB6-MB9. Total weight 1.85 ounces. Helvetia seated left. Reverse; Three men in front of Alps. Rutli "Eternal Pact". A lovely matching set. Lot of 4 coins. NGC graded All four pieces Proof 69 Ultra Cameo. Estimate Value $2,500 - 2,800