Imágenes históricas

Copper Electrolysis Process El Paso Texas 1943 - Available at KNOWOL
Copper Electrolysis Production at Phelps - Dodge 1943 - Available at KNOWOL
Copper Filter Process at Phelps - Dodge Morenci 1942 - Available at KNOWOL
Copper Ingots Being Poured at Phelps - Dodge 1942 - Available at KNOWOL
Copper Ingots on Conveyors at Phelps - Dodge 1942 - Available at KNOWOL
Copper Melting and Casting at Phelps Dodge 20th Century - Available at KNOWOL
Copper Miner at Anaconda Copper Mine Butte Montana 1942 - Available at KNOWOL
Copper Miners Monument Bisbee Arizona May 1937 - Available at KNOWOL
Copper Ore Car Dumper at Phelps - Dodge 1942 - Available at KNOWOL
Copper Ore Loading at Morenci Arizona Mine 1930 - Available at KNOWOL
Copper Ore Loading at Phelps - Dodge Mine Morenci 1942 - Available at KNOWOL
Copper Ore Loading in Morenci Arizona circa 1950 - Available at KNOWOL
Copper Ore Processing at Phelps - Dodge Morenci 1942 - Available at KNOWOL
Copper Processing at Phelps Dodge Refining Company 1950 - Available at KNOWOL
Copper Production at Phelps - Dodge Mining Company 1942 - Available at KNOWOL
Copper Production at Phelps - Dodge Plant El Paso 1942 - Available at KNOWOL
Copper Production at Phelps - Dodge Plant El Paso 1943 - Available at KNOWOL
Copper Production at Phelps - Dodge Plant Morenci 1942 - Available at KNOWOL
Copper Production at Phelps - Dodge Refining Company 1942 - Available at KNOWOL
Copper Production at Phelps - Dodge Refining Company 1943 - Available at KNOWOL
Copper Production at Phelps - Dodge Refining Company 1945 - Available at KNOWOL
Copper Production Electrolysis at Phelps - Dodge 1942 - Available at KNOWOL
Copper Production Electrolysis at Phelps - Dodge 1943 - Available at KNOWOL
Copper Production in El Paso Texas 1942 - Available at KNOWOL
Copper Production Process 1907 El Paso Texas - Available at KNOWOL
Copper Production Process at Phelps Dodge El Paso 1930 - Available at KNOWOL
Copper Production Thickener at Phelps - Dodge Mine 1942 - Available at KNOWOL
Copper Production Through Electrolysis 1942 - Available at KNOWOL
Copper Production Through Electrolysis at Phelps - Dodge 1943 - Available at KNOWOL
Copper Refining Electrolytic Tanks Phelps - Dodge 1942 - Available at KNOWOL
Copper Refining Process at Phelps Dodge El Paso 1919 - Available at KNOWOL
Copper Refining Process at Phelps Dodge El Paso 1940 - Available at KNOWOL
Copper Refining Process at Phelps - Dodge 1942 - Available at KNOWOL
Copper Refining Process at Phelps - Dodge 1943 - Available at KNOWOL
Copper Refining Yard in El Paso Texas 1942 - Available at KNOWOL