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You searched for: Topical Subjects Coal mines and mining. Remove constraint Topical Subjects: Coal mines and mining. Topical Subjects Coal Mines and Mining--Miners at Work. Remove constraint Topical Subjects: Coal Mines and Mining--Miners at Work. Topical Subjects Coal miners. Remove constraint Topical Subjects: Coal miners. Topical Subjects Mine timbering. Remove constraint Topical Subjects: Mine timbering.
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1. Transporting Lumber for Shoring in a Coal Mine

IDNO:
033523
Title:
Transporting Lumber for Shoring in a Coal Mine