The original files are in the German Federal Archives (Bundesarchiv), Collection “Slg. Sch.” Source of acquisition is Yad Vashem.This collection was compiled after the war by Bruno Schumacher, a German employee of the U.S. Document Center in Berlin; Schumacher focused on material that might be useful for war crimes trials.The United States Holocaust Memorial Museum's International Archives Project received the microfilm from Yad Vashem in Feb. 2007 through its mutual microfilm exchange program with Yad Vashem.