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Topical Subjects
- Coal mines and mining.5
- Coal Mines and Mining.4
- Coal--Transportation.3
- Coal mines and mining--West Virginia.2
- Coal preparation plants.2
- Tipples--West Virginia.2
- Barges.1
- Coal Mines and Mining--Progressive Miners Of America--Ozanic Collection.1
- Coal miners.1
- Coal trade.1
- Mine railroads--West Virginia.1
- Mine railroads.1
- Tipples--Design and construction.1