Production. Aircraft. A test engineer in a big Western aircraft plant examines a metal sample through a high-power (2700 diameter) microscope. Representative samples of all structural metals purchased for use in building ships in this plant must pass critical tests to detect faulty materials
Zusammenfassung
Public domain photograph of California in 1930s, free to use, no copyright restrictions image - Picryl description
Tags
Datum
01/01/1942
Mitwirkende
Bransby, David, photographer
United States. Office of War Information.
Lage
Burbank (Los Angeles County, Calif.), 34.18083, -118.30889
Quelle
Library of Congress
Copyright-info
Public Domain