https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14013851
De arte natandi libri duo, quorum prior regulas ipsius artis, posterior vero praxin demonstrationemque continet / [Everard Digby].
Original public domain image from Wellcome Collection
Public DomainFree CC0 image for Personal and Business use