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Topical Subjects
- Coal--Transportation.[remove]11
- Freight cars.10
- Coal Mines and Mining--Coal Transportation--Rail.4
- Coal Mines and Mining--Consolidation Coal Company.3
- Coal Mines and Mining--Preparation Plant Exteriors.3
- Coal mines and mining.3
- Coal preparation plants.3
- Tipples.3
- Coal Mines and Mining--Preparation Plant Interiors.1
- Coal miners--Dwellings.1
- Coal mines and mining--West Virginia--Lochgelly.1
- Coal preparation plants--West Virginia--Summerlee.1