The Leyhausen-Spiess Collection - the collected papers of German director and academic Wilhelm Leyhausen,[REF][REF] founder of the Delphic Institute [REF].
The Abd'Elkader Farrah collection - designs and artwork for several of the Greek and Shakespearian productions of the Algerian theatre designer Abd'Elkader Farrah (also known as Abdel Farrah) [REF].