Picryl description: Public domain image of military vehicle, automobile, tractor truck, free to use, no copyright restrictions.
Picryl description: Public domain image of an industrial building, factory, workshop, workers, 19th-20th century, free to use, no copyright restrictions.
Picryl description: Public domain image of an automobile, 1940s car, free to use, no copyright restrictions.
Picryl description: Public domain image of children in poverty during the Great Depression, migrant workers, free to use, no copyright restrictions.
Picryl description: Public domain image of a factory worker, plant, manufacture, assembly line, industrial facility, early 20th-century industrial architecture, free to use, no copyright restrictions. show less
Picryl description: Public domain image of an industrial equipment, workshop, assembly line, factory, power engine, 19th-20th century, free to use, no copyright restrictions.
Public domain photograph - historical image of Connecticut, United States, free to use, no copyright restrictions image - Picryl description
Picryl description: Public domain image of a bomber aircraft, military aviation, air forces, free to use, no copyright restrictions.
Picryl description: Public domain image of an aircraft, assembly line, industrial facility, 1930s aviation, free to use, no copyright restrictions.
Picryl description: Public domain image of a military aircraft, assembly line, industrial facility, 1930s aviation, free to use, no copyright restrictions.
Public domain photograph - historical image of Ohio, United States, free to use, no copyright restrictions image - Picryl description
Picryl description: Public domain image of a factory worker, plant, manufacture, assembly line, industrial facility, early 20th-century industrial architecture, free to use, no copyright restrictions. show less
Picryl description: Public domain image of workers, labor, 1940s, economic conditions, free to use, no copyright restrictions.
Public domain photograph of manufacturing, industry, free to use, no copyright restrictions image - Picryl description
Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description
Public domain photograph of people in the park, outdoors, picnic, free to use, no copyright restrictions image - Picryl description
Picryl description: Public domain image of a bomber aircraft, military aviation, air forces, free to use, no copyright restrictions.
Picryl description: Public domain image of an aircraft, assembly line, industrial facility, 1930s aviation, free to use, no copyright restrictions.