https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13962230![Sir Robert Ball. Colour lithograph after Sir L. Ward [Spy].](https://images.rawpixel.com/image_social_portrait/cHJpdmF0ZS9sci9pbWFnZXMvd2Vic2l0ZS8yMDI0LTAyL2xyL3djcG1kZTZiNHItaW1hZ2UuanBn.jpg)
Sir Robert Ball. Colour lithograph after Sir L. Ward [Spy].
Original public domain image from Wellcome Collection
Public DomainFree CC0 image for Personal and Business use