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Coming out of the mountains on the Atchison, Topeka and Santa Fe Railr...
Picryl description: Public domain image of railroad tracks, railway, train car, free to use, no copyright restrictions.
Supervisor stands on windlass to ballast it from toppling into well. J...
Picryl description: Public domain image of a construction site, wooden frame, timber, free to use, no copyright restrictions.
Pittsburgh, Pennsylvania (vicinity). Montour no. 4 mine of the Pittsbu...
Picryl description: Public domain image of a mine, mining, free to use, no copyright restrictions.
Bethlehem Fairfield shipyards, near Baltimore, Maryland. Construction ...
Public domain image of an industrial building, factory, structure, works, 19th-20th century industrial revolution, free to use, no copyright restrictions - Picryl description