Forms part of the Claims Conference International Holocaust Documentation Archive at the United States Holocaust Memorial Museum. This archive consists of documentation whose reproduction and/or acquisition was made possible with funding from the Conference on Jewish Material Claims Against Germany. Source of acquisition is the Eidgenössische Technische Hochschule Zürich. Archiv für Zeitgeschichte (AfZ), Switzerland; the signature: NL Hans Pfeiffer. The United States Holocaust Memorial Museum Archives received the collection via the United States Holocaust Memorial Museum’s International Archives Project in Nov. 2011.