The Papers comprise personal documents, correspondence, notes, plays, photographs, press clippings, manuscripts and an autobiography.
The most important subject covered is the theatre, in Germany, England and South Africa. There are also literary manuscripts belonging to Leontine Sagan's husband, Victor Fleischer. His most important work was Rienzo, the rise and fall of a dictator, published London, Aiglon, 1949, on Cola di Rienzo, 14th century dictator. The other manuscripts are of short stories and novels, in German.