Mainly female slave labour at a German rifle factory, occupied Poland. An estimated 2,500 German companies employed forced labour during World War II

Bundesarchiv_Bild_183-L12005,_Polen,_Zwangsarbeiter_in_Gewehrfabrik

https://en.wikipedia.org/wiki/File:Bundesarchiv_Bild_183-L12005,_Polen,_Zwangsarbeiter_in_Gewehrfabrik.jpg