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Coal miners push a large machine on tracks in an unknown mine likely in West Virginia.

1. Miners Push a Mining Machine Along Tracks in an Unknown Mine

2. Long Dump Truck Travels Down Dirt Road Through Clinchfield Mine, McClure, Va.

3. Miners Operate a Drilling Machine in an Unidentified Mine

4. Miners Operate a Drilling Machine in an Unidentified Mine

5. Miners Operate a Drilling Machine in an Unidentified Mine

6. Miner Operates a Drilling Machine in an Unidentified Mine

7. Miner Operates a Drilling Machine in an Unidentified Mine

8. Miners Operate a Drilling Machine in an Unidentified Mine

A photograph of a piece of mining and/or railroad equipment.

9. First Cable Reel Locomotive

10. Mining Apparatus at Thomas, W. Va.

Mechanic working on what appears to be a turbine.

11. Mechanic Working on Mining Machinery

Close view of an electric motor at a coal mine site in Thomas, W. Va.

12. Electric Motor, Thomas, W. Va.

13. Coal Loading Machine

Continuous miner in action.

14. Lee Norse CM28E Continuous Miner

A continuous mining machine operating in a four foot seam.

15. Continuous Mining Machine in Operation in a Four Foot Seam

Two men standing next to a continuous mining machine.

16. Continuous Mining Machine

Man operating a JMC1 continuous miner.

17. Joy Manufacturing Company Continuous Mining Machine

Picture drawn by Roger Zitko showing new face roof bolter on a continuous miner.

18. Drawing of New Face Roof Bolter on a Continuous Miner by Roger Zitko

A large Marietta Miner Continuous Mining Machine.

19. Marietta Miner Continuous Mining Machine

The National Mine Service Company granted an exclusive world-wide license to manufacture and sell a new type of shuttle car developed and patented by Pittsburgh Consolidation Coal Company.  The shuttle car was designed by Arthur L. Lee and his engineering staff of Pitt-Consol.

20. Pitt-Consol Shuttle Car

Coal loaders sit outside the Joy Manufacturing Factory.  Caption on photo reads, 'Mine equipment suppliers are busy turning out machinery for mechanical mining. For example, Joy Mfg. recently went on double shift operation to speed up production of mining machinery.'

21. Joy Manufacturing Company Factory Building

22. Manufacturer's Photo of a Coal Loading Machine

Joy executives stand beside a continuous mining machine.

23. Joy Manufacturing Company Executives Examine a Joy Continuous Mining Machine

An electric shuttle car sits in a warehouse yard.

24. Electric Shuttle Car