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Topical Subjects
- Coal miners.11
- Coal mines and mining.8
- Coal Mines and Mining--Miners at Work.7
- Coal-mining machinery.4
- Coal Mines and Mining--Coal Carts.2
- Coal Mines and Mining.2
- Mine railroads--Cars.2
- Coal Mines and Mining--Portraits--Group.1
- Coal Mines and Mining--Preparation Plant Exteriors.1
- Coal mines and mining--West Virginia.1
- Coal preparation plants.1
- Coal--Storage.1
- Coal--Transportation--West Virginia.1
- Horses.1
- Loaders (Machines)1
- Mine railroad trains.1
- Steam locomotives--West Virginia.1