Topical Subjects
- Coal-mining machinery--Kentucky.2
- Counties--Kanawha.2
- Demonstrations.2
- Diesel locomotives--West Virginia--Kenova.2
- Labor unions--West Virginia.2
- Longwall mining.2
- Mine inspection.2
- Mine railroad cars--West Virginia--Beartown.2
- Mine railroad cars.2
- Mine railroads--Kentucky.2
- Steam locomotives--West Virginia--Webster County.2
- Steam locomotives.2
- Steam shovels.2
- Strip mining--Ohio--Cadiz.2
- Tipples--West Virginia--Bergoo.2
- Underground pipelines--West Virginia--Kenova.2
- Ballast (Railroads)--West Virginia--Beartown.1
- Barges--West Virginia--Cedar Grove.1
- Bituminous coal--Maryland--Elkhart.1
- Boatbuilding--West Virginia--Kenova.1