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1Published 1894Subjects: '; “...Coal mines and mining Pennsylvania Periodicals....”In collection: Published Materials
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2Published 1871Subjects: '; “...Coal mines and mining Pennsylvania Periodicals....”In collection: Published Materials
Government Document Serial -
3Published 1873Subjects: ';In collection: Published MaterialsGovernment Document Serial
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4Published 1870Subjects: '; “...Coal mines and mining Pennsylvania Statistics Periodicals....”In collection: Published Materials
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5Published 1889Subjects: '; “...Coal mines and mining Pennsylvania Periodicals....”In collection: Published Materials
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6Reports of the Inspectors of Mines of the anthracite coal regions of Pennsylvania, for the year 1882Published 1883Subjects: ';In collection: Published MaterialsBook