Source of acquisition is the Israelitische Kultusgemeinde Wien, Austria. The original collection, including ownership rights, was formally transferred from the State Archive Burgenland (Landesarchiv Burgenland) to the Israelitische Kultusgemeinde Wien (Jewish Community Vienna) in February 2021. The United States Holocaust Memorial Museum Archives received the collection via the United States Holocaust Memorial Museum’s International Archives Project in November 2021. This is an ongoing project. This project is estimated to take three to four years (ca. 2025).