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A man stands in the mining shaft holding an instrument to test the gas levels in the mine.

1. Testing for Gas in a Pittsburgh Seam Coal Mine

Pile of coal in a storage bin.

2. Coal Storage Bin

Jackhorn five inch lock coal with an automobile in the background.

3. Jackhorn Five Inch Block Coal

Jackhorn Furnace coal with a tennis ball placed among the blocks.

4. Jackhorn Mine Furnace Coal, Tennis Ball Size

Pile of Jackhorn five inch block coal.

5. Jackhorn Five Inch Block Coal

Two men of the Dunglen No. 11 Mine, owned by Hanna Coal Company, inspecting a piece of equipment in front of a ambulance coal cart.

6. Inspecting Equipment on an Ambulance Cart, Dunglen No. 11 Mine, Hanna Coal Company,