Prisoners of Africans doing forced labor in D e u t s c h - O s t a f r i k a* Our colonies / Chain prisoners of men doing forced labor in D e u t s c h - O s t a f r i k a. Add to clipboard F 65/1704 File um 1905 Part of German Historical Museum Foundation Propaganda postcard; photo * photographer: Otto Haeckel (1872)* print shop, publishing house: New Photographic Society In: German Historical Museum Foundation Haeckel, Otto