"Acquisition" . "Source of acquisition is the Instytut Pamięci Narodowej-Komisja Ścigania Zbrodni przeciwko Narodowi Polskiemu (IPN), Warsaw, Poland, Sygn.148. Gestapo Polizeistelle in Zichenau (Ciechanów), Poland, created the records from 1939 to 1945. They were deposited after World War II in the IPN. Selected cases were filmed for the Musuem Archives in 1993."@eng . .