In 2020, the Holocaust Museum acquired more than 50 previously unknown images from Sobibor that had been the property of camp deputy commandant Johann Niemann. These photos, part of a larger collection donated by Niemann's descendants, provide never-before-seen views of the killing center, including photos of barracks buildings, workshops, and SS and Ukrainian guards.
Some of the images depict Sobibor personnel laughing and posing for vanity shots all while implementing the mass murder of at least 170,000 innocent Jews. Niemann was killed during the Sobibor prisoner revolt on October 14, 1943, after which the camp was closed and demolished.
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