Proof Set(4) 1971 (KM#1.3, 2.3, 3.1, 4.1). Comprising KM# 1.3 Silver 100 Francs, “Building of Lake Ganvie” Hallmark “1000” lower right of “S” in “FRANCS””; KM# 2.3 Silver 200 Francs “Abomey Woman” Hallmark “999.9” lower right of “S” in “FRANCS”, Reverse completely toned; KM# 3.1 Silver 500 Francs “Queme Woman” Hallmark “1000” in oval below “S” in “FRANCS”; KM# 4.1 Silver 1000 Francs “Somba Woman” Hallmark “1000” in oval below “S” in “FRANCS”, Reverse toned.