I came across [http://www.artic.edu/aic/collections/exhibitions/TASS/resource/1665] while browsing randomly and I'm utterly bemused.
Are the guys in the picture supposed to inspire horror in some way? I guess the guy on the right looks a little sinister but he looks more incredulous than anything. What am I missing here?
You appear to be missing the text accompanying the picture. They are not supposed to inspire horror, they are supposed to show they are not human beings but inferior people, animals or beasts because of their non-aryan, Asiatic, Semitic, or Slavic features and appearance.