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You searched for: Medium print Remove constraint Medium: print Projects West Virginia History OnView Remove constraint Projects: West Virginia History OnView Topical Subjects Coal-mining machinery. Remove constraint Topical Subjects: Coal-mining machinery. Topical Subjects Coal Mines and Mining--Mine Interiors. Remove constraint Topical Subjects: Coal Mines and Mining--Mine Interiors.
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Continuous mining machine at work.
Two miners operating a loading machine.