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Subject
- Mines and mineral resources.[remove]17
- Miners.7
- Labor.6
- Mine buildings.4
- Industry--United States--History.3
- Labor movement.3
- Strikes and lockouts.3
- Coal miners.2
- Coal mines and mining.2
- Gold mines and mining.2
- Landscapes.2
- Repossession.2
- Aerial cinematography.1
- Aerial views.1
- Aeronautics.1
- Basques.1
- Coal miners--Illinois.1
- Coal mines and mining--Illinois.1
- Coalfields.1
- Coolidge, Calvin, 1872-1933.1