There were actually a number of studies in the 1920s through the 1940s of anatomy, including biometric measurements and photos. Some of those pics and clinical data still exist in vaults, which I'd love to find.
Actually, such kind of photos and drawings in (pseudo) scientific books were published much earlier than that. I can't say where the tradition started, in France or Germany, though given German obsession with race and ethnicity I tend to go that way. In any case, I have a number of old books on these subjects. All are German publications, with translations into Dutch for one or two. Most were pre-Great War publications, from the late 1890s or 1900s, though I suppose there were older as well, though less profusely illustrated due to technological constraints. Interestingly, I've even come across advertisements for such books in Germany during the Great War itself, when you'd think people had other concerns to think about and other things to spend money on.
But then again maybe not that surprising as such books were aimed at the wealthier segment of society, at intellectuals and academics, lawyers, judges and so on. I've often thought of them as rich men's pornography in that their contents contained a large number of nudes in photo and line drawings, but it was supposed to be an academic interest. Or so the rationalization went I suppose. Whatever ... ha ha.
Some of these books went through dozens and dozens of print runs over the years and the publishing firms and authors that specialized in this sub-genre of academic pornography brought out dozens of similar titles, all on the subject of comparative ethnicity, bodily proportions, female beauty (often on an ethnic basis), childbearing and so on ... fascinating stuff actually. These books probably fulfilled a similar purpose as the old National Geographic Magazine when it published photos of topless or even nude 'natives' living then in colonial Africa or the South Seas, or when Nat. Geo. published paintings recreating scenes from life from Antiquity showing slave markets, fertility rites, gymnastics training and so on ...
I posted a few scans on the gallery here at zity: