Many paintings were lost, especially in the confusion of the Second World War. Paintings by the artist Erwin Bowien were confiscated by the Gestapo in 1943 and 1944 on the orders of the Reich Chamber of Culture - which had previously declared an exhibition ban. An extensive collection of paintings, which the artist had been forced to leave behind in the Netherlands during his flight in 1942, also remain missing. Paintings by the artist also disappeared in the post-war period. In 2006, for example, a collection of paintings by Erwin Bowien was purposefully stolen during a robbery in Solingen. These paintings remain missing to this day. The Foundation has now set itself the goal of assisting in locating the lost and stolen paintings and restituting them to their rightful owners. It supports provenance research and all measures that could lead to the identification and restitution of the works.