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Box 1 Ida Cassote to W. Franck, 1946
Box 1 Theo Feldman to Mr. and Mrs. Wolf and Jane Franck, 1953
Box 1 Karl Jaspers to Marga Franck, 1947
Box 1 Heinrich Mann to Franck, 1941
Box 1 O. Meyerhof to Franck, 1973