The photograph shows youths who were abused and maimed by the Belgian colonial power in the Congo under king Leopold II of Belgium (1835–1909).
Two youths from the Equator District, black-and-white photograph, about 1904, photographer: Alice Harris / Anti-Slavery International; source: Twain, Mark: King Leopold's Soliloquy: A Defense of His Congo Rule, 2. ed., Boston 1905, Wikimedia Commons, http://en.wikipedia.org/wiki/File:Amputated_Congolese_youth.jpg, public domain.