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Two men operating a loading machine.

1. Loading Machine in Action at Mine No. 32

Caption on back reads, 'Making a cut in the coal face is this Mastodon of the machine age - an underground cutter.  Rubber tired for mobility, and mounting a 9-foot cutting blade armed with whirring steel bits, it can cut a full 360 degree arc.  This and similar machines give America's bituminous coal mines almost unlimited capacity for production.'

2. Miners Operating a Cutting Machine at Mine No. 32, Consolidation Coal Company, Owings, W. Va.

3. Miners Loading Coal Into a Hand Loaded Loading Machine

Two men working on the loading machine.

4. Coal Loading Machine in Operation at Jamison Mine No. 9

Men at work with loading machine and shuttle car. Probably Joy Machinery.

5. Miners Operating a Loading Machine

6. Joy Manufacturing Company Continuous Mining Machine