Public domain scan of an old vintage map, free to use, no copyright restrictions - Picryl description.
Public domain scan of a fish, book illustration or drawing, free to use, no copyright restrictions - Picryl description.
Public domain scan of print / book page depicting birds, ornithology, 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