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TVA [Tennessee Valley Authority]: Construction of Douglas Dam.
Public domain scan of artwork related to technological or industrial history, free to use, no copyright restrictions image - Picryl description
Negroes speed war work for Tennessee Valley Authority.
Public domain scan of artwork related to technological or industrial history, free to use, no copyright restrictions image - Picryl description
Conservation: Rendering of household fats.
Public domain scan of artwork related to technological or industrial history, free to use, no copyright restrictions image - Picryl description
Negroes speed war work for Tennessee Valley Authority.
Public domain photograph of industrial architecture, factory building, free to use, no copyright restrictions image - Picryl description