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Konservierung: Rendering von Haushaltsfetten.
Public domain scan of artwork related to technological or industrial history, free to use, no copyright restrictions image - Picryl description
Neger beschleunigen Kriegsarbeit für Tennessee Valley Authority.
Public domain scan of artwork related to technological or industrial history, free to use, no copyright restrictions image - Picryl description
TVA [Tennessee Valley Authority]: Bau des Douglasiendammes.
Public domain scan of artwork related to technological or industrial history, free to use, no copyright restrictions image - Picryl description
Neger beschleunigen Kriegsarbeit für Tennessee Valley Authority.
Public domain photograph of industrial architecture, factory building, free to use, no copyright restrictions image - Picryl description