Topical Subjects
- Coal Mines and Mining--Strikes.1
- Coal Mines and Mining--Tipples.2
- Coal Mines and Mining.1
- Coal miners--Dwellings--West Virginia--Clarksburg.1
- Coal miners--Kentucky.1
- Coal miners.10
- Coal mines and mining--Equipment and supplies.1
- Coal mines and mining--Exhibitions.1
- Coal mines and mining--Kentucky.2
- Coal mines and mining--Maryland--Cumberland.1
- Coal mines and mining--Safety measures.1
- Coal mines and mining--West Virginia--Clarksburg.1
- Coal mines and mining--West Virginia--Owings.1
- Coal mines and mining--West Virginia.2
- Coal mines and mining.8
- Coal preparation plants--Kentucky--Jenkins.1
- Coal preparation plants--Ohio--Cadiz.2
- Coal preparation plants--West Virginia--Fairmont.2
- Coal preparation plants--West Virginia--Owings.1
- Coal preparation plants--West Virginia.1