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Topical Subjects
- Mine gases--Measurement.1
- Mine railroad cars--West Virginia.1
- Mine railroad trains.1
- Mine railroads--Cars.2
- Mine railroads--West Virginia.4
- Mine rescue work.1
- Portraits--State Federation of Labor.1
- Power-plants--West Virginia.1
- Steam locomotives--West Virginia.1
- Strip mining.1
- Test1
- Tipples--West Virginia--Design and construction.1
- Tipples--West Virginia--Thomas--Design and construction.1
- Tipples--West Virginia.85