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A miner is driving a battery powered shuttle car that is self unloading to the loading station.

1. Battery Powered 'Self Unloader' Shuttle Car Hauling Coal to Loading Station

Miner putting bolts into the roof of a mine for support.

2. Miner Roof Bolting

Miner putting bolts into the roof of a mine for support.

3. Miner Roof Bolting

Miner tests for gas after shooting of coal in Bishop's Mine, Poca Fuel Co.?

4. Testing for Gas After Shooting at Bishop's Mine

Miner checking for gas on pile of coal after it was shot down.

5. Coal Shot Down and Ready for Loading

Miner placing boards in Cavalier Mine No. 206.

6. Miner Placing Boards on the Floor of Cavalier Mine No. 206

Two miners operate a Sullivan cutting machine.

7. Cutting Machine

Miner tests for gas in mine.

8. Testing for Gas

Miner tests for gas in mine.

9. Testing for Gas

10. Miners Testing for Gas in a Coal MIne

Two miners test for gas in mine. Hamilton Wright Organization Inc.  80 Rockefeller Plaza, New York City, 'Newspaper Feature News' This photograph released to you GRATIS for editorial use only. Do not use for advertising purpose without written permission.

11. Testing for Gas

Man tests for gas at the Jamison No. 9 Mine.

12. Testing for Gas at Jamison No. 9 Mine