https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13959160
The eye, as seen through a microscope: three figures. Colour lithograph after R. Liebreich, ca. 1860.
The eye, as seen through a microscope: three figures. Colour lithograph after R. Liebreich, ca. 1860.
Original public domain image from Wellcome Collection
Public DomainFree CC0 image for Personal and Business use