Public domain scan of artwork related to technological or industrial history, free to use, no copyright restrictions image - Picryl description
Public domain photograph of industrial architecture, factory building, free to use, no copyright restrictions image - Picryl description
Public domain image of scientific diagram, free to use, no copyright restrictions image - Picryl description
Public domain scan of a print featuring furniture, art, or architecture design, free to use, no copyright restrictions image - Picryl description