Dates of Dispatch
- 01.01.1930
- Letter from: 1.1.1930, St. Moritz
- 26.02.1930
- Letter from: 26.2.1930, Charlottenburg
- 02.03.1930
- Letter from: 2.3.1930, Charlottenburg
- 30.05.1930
- Letter from: 30.5.1932, Zürich
- 30.06.1930
- Letter from: 30.6.1930, Am Rupenhorn 6
- 13.07.1930
- Letter from: 13.7.1930, Zürich
- 31.12.1930
- Letter from: 31.12.1930, Paris