imgur.com category @[deleted]
Photographer Chris Enos - A collection called early nudes. Link in comments for the rest.
imgur.com category @[deleted]
"Nude Applying Make-Up at the Window" photographed by Willy Kessels (1937)
imgur.com category @UghSheGiggin
Nude Model in the Studio photographed by Nikolai Ivanovich Svishtov Paulo (c. 1923)
imgur.com category @UghSheGiggin