Detailed dates of material: 1955 - 1956, 1960, 1963 - 1964, 1974 - 1975.
[10] p. Envelope 6/97 ; microfilm reel 062
"Otto Flake (29 October 1880, Metz – 10 November 1963) was a German writer"--wikipedia(English)(viewed 29.6.2016). Newspaper clippings, biographical information
Otto Flake