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Topical Subjects
- Coal Mines and Mining--Consolidation Coal Company.[remove]47
- Coal miners.[remove]47
- Coal-mining machinery.22
- Coal mines and mining.19
- Coal mines and mining--Equipment and supplies.14
- Loaders (Machines)5
- Shuttle cars (Mine haulage)5
- Coal--Transportation.4
- Mine railroads.3
- Mine roof bolting.2
- Coal mines and mining--Explosives.1
- Coal mines and mining--Kentucky--Jenkins.1
- Coal mines and mining--Kentucky.1
- Coal mines and mining--West Virginia--Owings.1
- Coal mines and mining--West Virginia--Watson.1
- Coal mines and mining--West Virginia.1
- Coal--Geology.1
- Mine railroads--Cars.1
- Roof trusses.1
- Showers (Plumbing fixtures)1