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Americans all. "She's a beautiful ship," and it took the combined effo...
Picryl description: Public domain image of a political campaign, politician, meeting, civil rights movement, African Americans, 1930s, mid-20th-century United States, free to use, no copyright restrictions.
Americans all. Philip Leung, Chinese, works on a powerful air-cooled a...
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
Americans all. At an Eastern aircraft factory, Philip Leung, Chinese; ...
Picryl description: Public domain image of a military aircraft, assembly line, industrial facility, 1930s aviation, free to use, no copyright restrictions.