Selected records of the Collection "Z" (materials collected by the Main Commission for Investigation of Nazi Crimes in Poland) containing fragments of German files and post-war materials regarding the places and facts of Nazi crimes Zbiór „Z” (akt zebranych przez Główną Komisję Badania Zbrodni Hitlerowskich w Polsce) zawierający fragmenty akt niemieckich i materiały powojenne dotyczące miejsc i faktów zbrodni hitlerowskich (GK 166)

Original documents collected by the Main Commission to Investigate Nazi Crimes in Poland: materials on Joseph Meisinger (chief of Einsatzgruppe IV, than chief of Sipo and SD in Warsaw), materials on the crimes committed in Zamość region (“Zamojszczyzna”), files on the children's camp Dierżężnia near Łódź, reports of gendarmerie in Biłgoraj county, District Lublin, materials regarding Major Henryk “Hubal” Dobrzański, a diary from the Łódź ghetto in Yiddish, memories of Tadeusz Bednarczyk about the Warsaw ghetto, personal files of Wilhelm Koppe (SS- und Polizeiführer, SSPF in GG), testimonies of witnesses about the crimes committed on professors in Lviv in 1941, testimonies of witnesses about the crimes of the Wehrmacht committed in Kleck, lists of SS, Szupo, SD, Gestapo and prison crews in the District Lublin, orders from 1941 Der Kommandeur der Sipo und SD fur den District Warschau, lists of Jews expelled from the Third Reich and staying in Zbąszyń camp, report from 1943 on the situation in the western territories of pre-war Poland, crimes committed during the Warsaw Uprising of 1944 - hearings of witnesses, list of victims from the Sokołów Podlaski county, lists of prisoners of Pawiak and Białystok, drawings of uniforms of German formations.

Arranged in sixteen groups: 1. Depositions by Joseph Meisinger; 2. Files on Nazi crimes in the Zamość region; 3. Files of the Umwanderungszentralstelle on the camp for minors in Dzierżążnia near Łódź in 1940; 4. Reports of the gendarmerie on Lublin district, region Biłgoraj-Zamość; 5. Documents on Major Henryk Dobrzański (Hubal); 6. Diary from the ghetto in Łódź; 7. Memoirs of Tadeusz Bednarczyk-Warsaw Ghetto; 8. Personal files of the war criminal, Wilhelm Koppe; 9. Testimonies of witnesses of crimes committed against the professors in Lʹviv. Name list of professors and their families; 10. Lists of members of the SS, Szupo, SD and Gestapo; 11. Orders, 1941 (incomplete) Dates: from 3.I. until 23.V.1941 (Der Kommandeur der Sicherheitzpolizei in des SD fur den District Warschau); 11. Lists of Polish Jews expelled from the Third Reich and residing in Zbąszyń; 12. Report on the situation in the western territories, 1943; 13. Reports of the interrogation of witnesses concerning the Warsaw Uprising, 1944-1945; 14. Name lists of World War II victims from the Sokołów Podlaski region; 15. Lists of Pawiak prisoners transported to Auschwitz; 16. Portfolio of colorful hand-painted boards: Uniforms and insignia of the German armed forces (Wehrmacht) and party formations of the NSDAP.