Source of acquisition is the Eidgenössische Technische Hochschule Zürich. Archiv für Zeitgeschichte (AfZ), Switzerland. The records in this collection were originally part of the the Schweizer Israelitischer Gemeindebund Archiv (SIG), and later in 1994 acquired by the Archiv für Zeitgeschichte (AfZ). Over the years, additional materials were added to the collection. The United States Holocaust Memorial Museum Archives received the collection via the United States Holocaust Memorial Museum’s International Archives Project in Oct. 2012.