Public domain scan of artwork related to technological or industrial history, free to use, no copyright restrictions image - Picryl description
Picryl description: Public domain photograph of a pipe, pipeline, excavation, free to use, no copyright restrictions.
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
Picryl description: Public domain image of a quarry, mine, excavation, or mining site, free to use, no copyright restrictions.
New York stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass More