https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14022057![N.S. Korotkow. Photograph, 1904.](https://images.rawpixel.com/image_social_portrait/cHJpdmF0ZS9sci9pbWFnZXMvd2Vic2l0ZS8yMDI0LTAyL2xyL3djenQ5NXlyZGEtaW1hZ2UuanBn.jpg)
![N.S. Korotkow. Photograph, 1904.](https://images.rawpixel.com/image_social_portrait/cHJpdmF0ZS9sci9pbWFnZXMvd2Vic2l0ZS8yMDI0LTAyL2xyL3djenQ5NXlyZGEtaW1hZ2UuanBn.jpg)
N.S. Korotkow. Photograph, 1904.
N.S. Korotkow. Photograph, 1904.
Original public domain image from Wellcome Collection
Public DomainFree CC0 image for Personal and Business use