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You searched for: Topical Subjects Coal Mines and Mining--Consolidation Coal Company. Remove constraint Topical Subjects: Coal Mines and Mining--Consolidation Coal Company. Topical Subjects Coal mines and mining--Explosives. Remove constraint Topical Subjects: Coal mines and mining--Explosives. Topical Subjects Coal-mining machinery. Remove constraint Topical Subjects: Coal-mining machinery.
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Two men using large bits to drill prior to placing charges.

1. Drilling Prior to Placing Charges

IDNO:
002136
Title:
Drilling Prior to Placing Charges
Description:
Two men using large bits to drill prior to placing charges.