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Negroes speed war work for Tennessee Valley Authority. (left to right)...
Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description
Laboratory technicians at a pharmaceutical lab in Rockville, Maryland
Public domain photograph of laboratory, free to use, no copyright restrictions image - Picryl description
A black and white photo of men working in a lab. Office of War Informa...
Actual size of negative is C (approximately 4 x 5 inches). Image source: Tennessee Valley Authority photo from OWI. Title and other information from caption card. Transfer; United States. Office of War Informat... More