Rudolf Schardt took over the by Georg Schardt's founded factory and renamed it "Ruscha". Cilli Wörsdörfer was responsible for the art pottery department in the 1950s. Otto Gerharz was production director from 1951 and devised the "Vulkano" glaze. Kurt Tschörner created most of the shapes. Other notable designers were Ernst Borens, Hans Welling, Adele Bolz and Heinz Siery.