Real ethnographic photos of Russians and some of Belorussians and Ukrainians. And some color modern photos just for comparison. On the photo above: Bryansk region, 1926
Bryansk region, 1925
Russian woman, Orlovsk region
Russian girl, Bryansk region
Early XX century, Ukrainian girls in national costumes.
Ukrainians mostly have these heavy square-shaped faces
And some modern pictures:
This one is Polish: