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safety film negatives

library of congress

station

united states history

1940 s

40 s

african americans

airport

americans

indicators, safety film negatives

public
3 media by topic ∙ page 1 of 1
Washington, D.C. The U.S. Weather Bureau station at the National Airport. Surface weather being observed at a Weather Bureau instrument panel on which are mounted barometers, thermometers, wind direction and velocity indicators, and other instruments for measuring weather elements

Washington, D.C. The U.S. Weather Bureau station at the National Airpo...

Public domain photograph of Washington DC, 1930s, free to use, no copyright restrictions image - Picryl description

Manpower. Negro bomber plant workers. Americans of various racial groups provide manpower for war industries. These youths, employees in a large Eastern bomber plant, are assembling bomb indicators. Both are graduates of government war training courses. Glenn L. Martin Bomber Plant. Baltimore, Maryland

Manpower. Negro bomber plant workers. Americans of various racial grou...

Public domain photograph of Maryland in 1930s, free to use, no copyright restrictions image - Picryl description

Detroit, Michigan. Assembly of Rolls Royce engines at the Packard Motor Car Company. Checking studs and bolts with dial indicators

Detroit, Michigan. Assembly of Rolls Royce engines at the Packard Moto...

Picryl description: Public domain image of a political campaign, group of people, meeting, 1930s, mid-20th-century United States, free to use, no copyright restrictions.