https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13973958![John William Ballantyne. Photograph by A. Swan Watson.](https://images.rawpixel.com/image_social_portrait/cHJpdmF0ZS9sci9pbWFnZXMvd2Vic2l0ZS8yMDI0LTAyL2xyL3djYnlyNXRlc2QtaW1hZ2UuanBn.jpg)
![John William Ballantyne. Photograph by A. Swan Watson.](https://images.rawpixel.com/image_social_portrait/cHJpdmF0ZS9sci9pbWFnZXMvd2Vic2l0ZS8yMDI0LTAyL2xyL3djYnlyNXRlc2QtaW1hZ2UuanBn.jpg)
John William Ballantyne. Photograph by A. Swan Watson.
John William Ballantyne. Photograph by A. Swan Watson.
Original public domain image from Wellcome Collection
Public DomainFree CC0 image for Personal and Business use