https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13991553![John Abernethy. Stipple engraving after C. Penny.](https://images.rawpixel.com/image_social_portrait/cHJpdmF0ZS9sci9pbWFnZXMvd2Vic2l0ZS8yMDI0LTAyL2xyL3djanl4YXFoZjYtaW1hZ2UuanBn.jpg)
![John Abernethy. Stipple engraving after C. Penny.](https://images.rawpixel.com/image_social_portrait/cHJpdmF0ZS9sci9pbWFnZXMvd2Vic2l0ZS8yMDI0LTAyL2xyL3djanl4YXFoZjYtaW1hZ2UuanBn.jpg)
John Abernethy. Stipple engraving after C. Penny.
John Abernethy. Stipple engraving after C. Penny.
Original public domain image from Wellcome Collection
Public DomainFree CC0 image for Personal and Business use