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Topical Subjects
- Coal Mines and Mining.[remove]275
- Coal mines and mining.[remove]275
- Tipples.58
- Conveying machinery.46
- Coal--Transportation.36
- Freight cars.26
- Tipples--Design and construction.22
- Coal miners--Dwellings.11
- Coal miners.11
- Railroad tracks.8
- Coal-mining machinery.7
- Mine railroads.6
- Barges.4
- Coal.4
- Bridges.2
- Mine railroad cars.2
- Steam locomotives.2
- Steam shovels.2
- Company stores.1
- Electric substations.1