A group of men sitting around a table. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description
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 equipment, workshop, assembly line, factory, power engine, 19th-20th century, free to use, no copyright restrictions.
Picryl description: Public domain photograph of farming, farmer, agriculture, 20th-century, free to use, no copyright restrictions.
Public domain photograph of diesel engine, train locomotive, generator, free to use, no copyright restrictions image - Picryl description
Picryl description: Public domain image of a historical building, landmark architecture, world heritage, free to use, no copyright restrictions.
Public domain photograph of a steam locomotive, train car, railroad, railway, 19th-20th century, free to use, no copyright restrictions image - Picryl description
Picryl description: Public domain image of an industrial building, warehouse, depot, train station, 19th-20th century, free to use, no copyright restrictions.
Picryl description: Public domain image of a factory, plant, manufacture, assembly line, industrial facility, early 20th-century industrial architecture, free to use, no copyright restrictions.
Public domain image with Picryl description as title Public domain photograph of ship dock, harbor, free to use, no copyright restrictions image - Picryl description
Public domain photograph of 1930s industry, war production in the United States free to use, no copyright restrictions image - Picryl description
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 of 1930s industry, war production in the United States free to use, no copyright restrictions image - Picryl description
Public domain photograph of indoor, interior activity, America in the 1930s, free to use, no copyright restrictions image - Picryl description
Public domain image of an industrial building, factory, structure, works, 19th-20th century industrial revolution, free to use, no copyright restrictions - Picryl description
Public domain photograph of the United States military and military-industrial complex before World War Two, 1930s, free to use, no copyright restrictions image - Picryl description
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 of 1930s industry, war production in the United States free to use, no copyright restrictions image - Picryl description
Picryl description: Public domain photograph of armor, free to use, no copyright restrictions image.
Public domain photograph of 1930s industry, war production in the United States free to use, no copyright restrictions image - Picryl description
Public domain photograph of 1930s-1940s US industrial development, Second World War, US war production, indusry, no copyright restrictions image - Picryl description
Picryl description: Public domain image of an industrial equipment, workshop, assembly line, factory, power engine, 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.
Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description
Public domain photograph - working class people, the 1930s United States, work, labor, worker, free to use, no copyright restrictions image - Picryl description
Public domain photograph of train station, free to use, no copyright restrictions image - Picryl description
Picryl description: Public domain photograph of workers, war production, aircraft, airfield, the 1930s -1940s, free to use, no copyright restrictions.
Picryl description: Public domain image of a locomotive, train tracks, rail transportation, railroad, railway, 19th-20th century, free to use, no copyright restrictions.
Public domain photograph of industrial architecture, factory building, free to use, no copyright restrictions image - Picryl description
Public domain photograph of train station, free to use, no copyright restrictions image - Picryl description
Picryl description: Public domain image of a locomotive, train tracks, rail transportation, railroad, railway, 19th-20th century, free to use, no copyright restrictions.
Picryl description: Public domain image of workers, labor, 1940s, economic conditions, free to use, no copyright restrictions.
Picryl description: Public domain image of workers, labor, 1940s, economic conditions, free to use, no copyright restrictions.
Public domain photograph of 1930s America, free to use, no copyright restrictions image - Picryl description
Picryl description: Public domain photograph of a dock, harbor, boats, water, free to use, no copyright restrictions.
Public domain photograph of train station, free to use, no copyright restrictions image - Picryl description
Picryl description: Public domain image of people, meeting, eating, drinking, food, beverage, 1930s, free to use, no copyright restrictions.
Public domain photograph of 1930s America, free to use, no copyright restrictions image - Picryl description
Picryl description: Public domain image of an industrial building, factory, workshop, workers, 20th century, free to use, no copyright restrictions.
Picryl description: Public domain image of a locomotive, train cars, railroad tracks, railway, 19th-20th century, free to use, no copyright restrictions.
Picryl description: Public domain image of railway tracks, train station, railroad building, free to use, no copyright restrictions.
Picryl description: Public domain image of a locomotive, train cars, railroad tracks, railway, 19th-20th century, free to use, no copyright restrictions.