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Topical Subjects
- Coal Mines and Mining--Consolidation Coal Company.1
- Coal Mines and Mining--Mine Safety.1
- Coal Mines and Mining--Preparation Plant Interiors.1
- Coal Mines and Mining--Progressive Miners Of America--Ozanic Collection.1
- Coal miners--West Virginia--Grafton.1
- Coal mines and mining--Safety measures.1
- Coal mines and mining--West Virginia--Grafton.1
- Coal mines and mining--West Virginia--Monongalia County.1
- Coal mines and mining--West Virginia--Winifrede.1
- Coal--Transportation--West Virginia--Winifrede.1
- Coal-mining machinery.1
- Electric locomotives.1
- Horse-drawn vehicles.1
- Mine railroad trains.1
- Mine safety.1
- Salt Industry--J.Q. Dickinson Collection.1
- Salt industry and trade--West Virginia.1
- Salt mines and mining.1