Public domain photograph of electric power plant, generation, free to use, no copyright restrictions image - Picryl description
Picryl description: Public domain image of photogram, free to use, no copyright restrictions photo.
Public domain scan of artwork from NYPL collection, free to use, no copyright restrictions image - Picryl description
Public domain reproduction of illuminated book page, free to use, no copyright restrictions image - Picryl description
Public domain scan of a medieval manuscript, free to use, no copyright restrictions image - Picryl description.