Pittsburgh Area Steel Mills

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122 Total Pictures

Dorothy 6 Blast Furnace, Duquesne Works 3-81 SF132-27

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Duquesne Works with Dorothy 6 3-88 LF

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USS Duquesne Works, Dorothy Furnace SF257-30 11/82

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Dorothy 6 Blast Furnace, Duquesne Works 4-88

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Dorothy 6, Duquesne Works 3-88 SF539-25

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Dorothy 6 & Pool, Duquesne Works 3-88 LF

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Ore Pit Duquesne Works 9-89 SF676-27

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Cranes and Dorothy Furnaces, Duquesne Works 9-89 LF

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National Works, McKeesport 10-88 SF570-26

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National Works 10-88

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