Source
Source: Angehörige des Reichsarbeitsdienstes legen
Entwässerungsgräben an. Unknown photographer.
bpk-Bildagentur,
image number 30024542. For rights inquiries, please contact Art Resource
at requests@artres.com (North America) or bpk-Bildagentur at
kontakt@bpk-bildagentur.de (for all other countries).