"Atlas of Men"

So apparently there were tens of thousands of nude photographs of men (& women) taken in the 50-70s of incoming college students. They were ostensibly for scientific analysis of body types and posture. It was a New York Times Magazine cover story in 1995. From all the big name schools. One at a time, naked, in black and white, with pins stuck down the back

This was a practice called "somatotyping" and had racist and sexist undertones. There are three types of male body types, according to quack academic WH Sheldon. Actually every person supposedly has qualities of all three.

fat and jolly "endomorphs"
confident, buffed "mesomorphs"
skinny, nervous "ectomorphs"

(corresponding to the photo on the left...)

There was tobacco industry study of male virility (measured visually in these photographs?) and smoking, somewhere in there, too. These photos exist in an US gov't archive in Washington DC.

He published hundreds of these images in his book Atlas of Men, which you can buy on ebay for $135.