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Conversion. Merry-go-round plant. These hands and this machine used to...
Picryl description: Public domain image of children in poverty during the Great Depression, migrant workers, free to use, no copyright restrictions.
Conversion. Merry-go-round plant. These are landing gear housings for ...
Public domain photograph related to Great Depression, free to use, no copyright restrictions image - Picryl description
Production. A-31 ("Vengeance") dive bombers. Burring landing gear hous...
Picryl description: Public domain image of an industrial equipment, workshop, assembly line, factory, power engine, 19th-20th century, free to use, no copyright restrictions.