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Topical Subjects
- Coal Mines and Mining--Consolidation Coal Company--Inspection Trip, 1948.60
- Coal trade.49
- Coal Mines and Mining--Coal Displays.32
- Coal Mines and Mining--Consolidation Coal Company.12
- Coal--Exhibitions.11
- Coal miners.10
- Smokeless fuel--Exhibitions.9
- Coal mines and mining.8
- Coal preparation plants.8
- Coal Mines and Mining--Coal Carts.7
- Coal--Transportation.7
- Coal--Transportation--West Virginia.6
- Coal Mines and Mining--Preparation Plant Exteriors.5
- Coal Mines and Mining--Preparation Plant Interiors.5
- Mine railroad trains.5
- Advertising.4
- Coal preparation.4
- Electric locomotives.4
- Smokeless fuel.4
- Billboards.3