Public domain illustrated book page scan, American, free to use, no copyright restrictions image - Picryl description
Public domain image of painting, 18th-19th century, free to use, no copyright restrictions - Picryl description
Public domain photograph of a harbor, ship, free to use, no copyright restrictions image - Picryl description
Public domain scan of American 19th-century print, free to use, no copyright restrictions image - Picryl description