https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14010361![An unidentified man. Photograph by Eugène Pirou.](https://images.rawpixel.com/image_social_portrait/cHJpdmF0ZS9sci9pbWFnZXMvd2Vic2l0ZS8yMDI0LTAyL2xyL3djdWdueTd6Y2gtaW1hZ2UuanBn.jpg)
![An unidentified man. Photograph by Eugène Pirou.](https://images.rawpixel.com/image_social_portrait/cHJpdmF0ZS9sci9pbWFnZXMvd2Vic2l0ZS8yMDI0LTAyL2xyL3djdWdueTd6Y2gtaW1hZ2UuanBn.jpg)
An unidentified man. Photograph by Eugène Pirou.
An unidentified man. Photograph by Eugène Pirou.
Original public domain image from Wellcome Collection
Public DomainFree CC0 image for Personal and Business use