MARI is innovative in many ways. For the first time, descendants of victims of Nazi persecution are cooperating with German institutions in a public/private partnership in provenance research. After an initial three-year research period, the successful project at Freie Universität Berlin is now being continued. Numerous works from the former Mosse collection have already been recovered and restituted. In the process, surprising stories came to light showing the whole challenge range of provenance research and restitution. MARI's task, however, is not only to search for the works of the former collection, but also to gain insight into the strategies of the so called “Gleichschaltung” (consolidation) of the press just after the Nazis came to power in 1933, as well [...]