Nadar, the photographer<unk> is a series of photographs of a young intersex person, who had a male build and stature, and may have been assigned female or self-identified as female, taken by French photographer Nadar (real name Gaspard-Félix Tournachon). Possibly commissioned by Armand Trousseau, the nine photographs have been described as "probably the first medical photo-illustrations of a patient with intersex genitalia". They were originally restricted for scientific uses, and Nadar did not publish them. Further photographs of intersex subjects followed over the next several decades, although there is no evidence that the photographers knew of Nadar's work.
Hermaphrodite 
Orthosilicic acid
Cellulite
Hemichrome
Methylphosphonyl difluoride
Tetrachlorodecaoxide
Dichloroacetic acid
Diatrizoate