During the symposium organized by the CIVS on November 15, 2019, Lea Grüter and Leonhard Weidinger showed how the Nazi regime organized and extended its control over objects and works of art in Europe from the late 1930s.<br />Lea Grüter is a provenance researcher and has been conducting research for the Rijksmuseum (Amsterdam) since 2017. She particularly works on museum acquisitions occurring from 1933 onwards. Since 2005, historian Leonhard Weidinger has been a provenance researcher at the MAK museum in Vienna, and on behalf of Austria's Commission for Provenance Research.<br />Their presentation in this conference focuses on the situation in Austria after the Anschluss, and on a coffee and tea set today present at the Rijksmuseum. To conclude, the two researchers share their convictions on the challenges facing Provenance Research and the best way to move forward.