Period 1939-1965
Correspondence, partly by both Fritz and Katharina Flesch, with Friedrich Adler 1939-1944, Yvon Bourdet 1963-1964, Luise Kautsky (also photocopies) 1939- 1940, The New Leader (S.M. Levitas) 1944-1955, Franz Sengenhofer 1957, Anna Siemsen-Vollenweider 1939-1940, Friedrich Stampfer 1940-1944 and other...
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