- Authors, German--20th century--Correspondence (9)
- Rilke, Rainer Maria, 1875-1926--Correspondence (9)
- Kappus, Franz Xaver, 1883-1966--Correspondence (2)
- Andreas-Salomé, Lou, 1861-1937--Correspondence (1)
- Art in literature--Germany--History--20th century (1)
- Authors, Austrian--20th century--Correspondence (1)
- Authors, French--20th century--Correspondence (1)
- Balthus, 1908---Correspondence (1)
- Cats in art (1)
- Goll, Claire, 1891-1977--Correspondence (1)
- Hofmannsthal, Hugo von, 1874-1929--Correspondence (1)
- Rilke, Rainer Maria, 1875-1926--Journeys--Soviet Union (1)
- Rilke, Rainer Maria, 1875-1926--Knowledge--Art (1)
- Soviet Union--Description and travel--1917-1944 (1)
- Thurn und Taxis, Marie, Princess, 1855-1934 (1)