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1. Transporting Lumber for Shoring in a Coal Mine

2. Transporting Lumber for Shoring in a Coal Mine

3. Transporting Lumber for Shoring in a Coal Mine

4. Shuttle Car Carrying Timber in the Mine

5. Miners Shoring up Ceiling of a Coal Mine

6. Transporting Logs into a Coal Mine

7. Miners Cutting Timber to Shore up the Walls of a Mine

8. Miner at Work Underground in a Coal Mine