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Copper Refining Process at Phelps Dodge El Paso Early 20th Century - Available at KNOWOL

Copper Refining Process at Phelps Dodge El Paso Early 20th Century

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Vintage Copper Production Photo El Paso Texas 20th Century - Available at KNOWOL

Vintage Copper Production Photo El Paso Texas 20th Century

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Phelps Dodge Refining Company Copper 1919 El Paso Texas - Available at KNOWOL

Phelps Dodge Refining Company Copper 1919 El Paso Texas

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Copper Materials for Refining at Phelps Dodge El Paso 1950s - Available at KNOWOL

Copper Materials for Refining at Phelps Dodge El Paso 1950s

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Phelps Dodge Copper Refining Plant El Paso 1938 - Available at KNOWOL

Phelps Dodge Copper Refining Plant El Paso 1938

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Vintage 1940 Photo of Copper Extraction at Refinery - Available at KNOWOL

Vintage 1940 Photo of Copper Extraction at Refinery

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Phelps Dodge Refining Company Pipes El Paso Texas 1940 - Available at KNOWOL

Phelps Dodge Refining Company Pipes El Paso Texas 1940

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Phelps Dodge Refining Company El Paso Texas Early 20th Century - Available at KNOWOL

Phelps Dodge Refining Company El Paso Texas Early 20th Century

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Phelps Dodge Copper Refining Plant El Paso 1950 - Available at KNOWOL

Phelps Dodge Copper Refining Plant El Paso 1950

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Phelps Dodge Copper Refining Company El Paso 1940 - Available at KNOWOL

Phelps Dodge Copper Refining Company El Paso 1940

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Phelps Dodge Copper Recovery Process El Paso 1935 - Available at KNOWOL

Phelps Dodge Copper Recovery Process El Paso 1935

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Phelps Dodge Copper Refining Process El Paso Mid 20th Century - Available at KNOWOL

Phelps Dodge Copper Refining Process El Paso Mid 20th Century

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Phelps Dodge Copper Refining Plant Interior 1952 - Available at KNOWOL

Phelps Dodge Copper Refining Plant Interior 1952

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Phelps Dodge Copper Refining Scene El Paso Early 20th Century - Available at KNOWOL

Phelps Dodge Copper Refining Scene El Paso Early 20th Century

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1950 Workers Casting Copper Ingots Phelps Dodge El Paso - Available at KNOWOL

1950 Workers Casting Copper Ingots Phelps Dodge El Paso

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Pure Copper Ingots Processed by Phelps Dodge 1910 - Available at KNOWOL

Pure Copper Ingots Processed by Phelps Dodge 1910

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Molten Copper Poured at Phelps Dodge Refining 1920 - Available at KNOWOL

Molten Copper Poured at Phelps Dodge Refining 1920

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1942 Vintage Photo of Workman Trimming Ingot in El Paso - Available at KNOWOL

1942 Vintage Photo of Workman Trimming Ingot in El Paso

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1950 Worker Trimming Ingot at Phelps Dodge Refining Plant - Available at KNOWOL

1950 Worker Trimming Ingot at Phelps Dodge Refining Plant

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El Paso 1950 Workman Trimming Ingot at Phelps Dodge Plant - Available at KNOWOL

El Paso 1950 Workman Trimming Ingot at Phelps Dodge Plant

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Phelps Dodge Copper Casting House El Paso 1907 - Available at KNOWOL

Phelps Dodge Copper Casting House El Paso 1907

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Phelps Dodge Copper Refining El Paso Texas 1910 - Available at KNOWOL

Phelps Dodge Copper Refining El Paso Texas 1910

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Phelps Dodge Copper Refining Process 1950s El Paso Texas - Available at KNOWOL

Phelps Dodge Copper Refining Process 1950s El Paso Texas

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Electrolytic Tanks at Phelps Dodge Copper Refinery Early 20th Century - Available at KNOWOL

Electrolytic Tanks at Phelps Dodge Copper Refinery Early 20th Century

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Phelps Dodge Refining Company Copper Production Tanks 1900s - Available at KNOWOL

Phelps Dodge Refining Company Copper Production Tanks 1900s

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Vintage Copper Workers in Reverberatory Furnace Circa 1930 - Available at KNOWOL

Vintage Copper Workers in Reverberatory Furnace Circa 1930

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Copper Charging Process in Reverberatory Furnace 1905 - Available at KNOWOL

Copper Charging Process in Reverberatory Furnace 1905

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Phelps Dodge Copper Plant Furnace El Paso Texas 1950 - Available at KNOWOL

Phelps Dodge Copper Plant Furnace El Paso Texas 1950

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Copper Ingot Casting Early 1900s El Paso Texas - Available at KNOWOL

Copper Ingot Casting Early 1900s El Paso Texas

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Vintage 1960 El Paso Copper Electrolytic Tanks Image - Available at KNOWOL

Vintage 1960 El Paso Copper Electrolytic Tanks Image

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Pure Copper Sheets from Phelps Dodge Refining Company 1900s - Available at KNOWOL

Pure Copper Sheets from Phelps Dodge Refining Company 1900s

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Copper Electrolysis Process at Phelps Dodge Circa 1900 - Available at KNOWOL

Copper Electrolysis Process at Phelps Dodge Circa 1900

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Copper Electrolysis Sheets Melted into Ingots 1940 - Available at KNOWOL

Copper Electrolysis Sheets Melted into Ingots 1940

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1920 Copper Electrolysis Process at Phelps Dodge Refining Company - Available at KNOWOL

1920 Copper Electrolysis Process at Phelps Dodge Refining Company

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Phelps Dodge Copper Ingot Casting El Paso 1943 - Available at KNOWOL

Phelps Dodge Copper Ingot Casting El Paso 1943

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Copper Melting and Casting at Phelps Dodge 20th Century - Available at KNOWOL

Copper Melting and Casting at Phelps Dodge 20th Century

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Vintage Copper Production at Phelps Dodge El Paso 20th Century - Available at KNOWOL

Vintage Copper Production at Phelps Dodge El Paso 20th Century

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Copper Refining Process at Phelps Dodge El Paso 1919 - Available at KNOWOL

Copper Refining Process at Phelps Dodge El Paso 1919

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Copper Sheets on Conveyors El Paso Texas Mid - 20th Century - Available at KNOWOL

Copper Sheets on Conveyors El Paso Texas Mid-20th Century

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Phelps Dodge Refining Company Copper Production 1942 - Available at KNOWOL

Phelps Dodge Refining Company Copper Production 1942

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1940 Copper Sheets on Conveyors at Phelps Dodge El Paso - Available at KNOWOL

1940 Copper Sheets on Conveyors at Phelps Dodge El Paso

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Copper Sheets on Conveyors at Phelps Dodge 1940 - Available at KNOWOL

Copper Sheets on Conveyors at Phelps Dodge 1940

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Phelps Dodge Copper Refining Yards El Paso Texas 1955 - Available at KNOWOL

Phelps Dodge Copper Refining Yards El Paso Texas 1955

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Phelps Dodge Copper Refining in El Paso Texas 1940 - Available at KNOWOL

Phelps Dodge Copper Refining in El Paso Texas 1940

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Electrolysis Copper Sheets at Phelps Dodge 1920 - Available at KNOWOL

Electrolysis Copper Sheets at Phelps Dodge 1920

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Vintage Copper Electrolysis Process Circa 1900 - Available at KNOWOL

Vintage Copper Electrolysis Process Circa 1900

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Copper Production Process 1907 El Paso Texas - Available at KNOWOL

Copper Production Process 1907 El Paso Texas

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Pure Copper Sheets from Phelps Dodge El Paso Circa 1900 - Available at KNOWOL

Pure Copper Sheets from Phelps Dodge El Paso Circa 1900

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