https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13984072![Microscopy: parts of a [water] plant. Coloured lithograph, 1838, after D.C.G. Ehrenberg.](https://images.rawpixel.com/image_social_portrait/cHJpdmF0ZS9sci9pbWFnZXMvd2Vic2l0ZS8yMDI0LTAyL2xyL3djZnJheGQ1d3EtaW1hZ2UuanBn.jpg)
Microscopy: parts of a [water] plant. Coloured lithograph, 1838, after D.C.G. Ehrenberg.
Original public domain image from Wellcome Collection
Public DomainFree CC0 image for Personal and Business use