Teenage girls in bathing suits and caps pose on a dock in Brandenburg, Germany, March 1928.
Visit Proof, National Geographic’s new blog, for more photography goodness. Photograph by Wilhelm Tobien, National Geographic

Teenage girls in bathing suits and caps pose on a dock in Brandenburg, Germany, March 1928.

Visit Proof, National Geographic’s new blog, for more photography goodness. Photograph by Wilhelm Tobien, National Geographic