Public domain illustrated book page scan, related to zoology, free to use, no copyright restrictions image - Picryl description
Public domain scan of a technical diagram, plan, or drawing, free to use, no copyright restrictions - Picryl description.
Public domain scan of 19th-century zoological illustration, free to use, no copyright restrictions image
Public domain scan of 18th-century print, free to use, no copyright restrictions image - Picryl description