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Miner operating a loading machine outside of a mine.

7. Loading Machine at MacAlpin Coal Company

Miners at work. 'Mountaineer Coal Co., Division of Consolidation Coal Co.'

8. Miners Working with Loading Machine

Miner operating a Joy continuous mining machine.

9. Joy Manufacturing Company Continuous Mining Machine

Miner operating a Joy loading machine.

10. Joy Loading Machine

Miner operating a Joy loading machine.

11. Modern Joy Loading Machine

Miner operating a Joy Loading Machine. '180 tons a day.'

12. Joy Loading Machine in Action