Vienna, Spring 1971
I Berlin, Autumn 1941
II
III Berlin, 1942
VI
V Berlin, Autumn 1944
VII Berlin, December 1944
VIII
IX
X Berlin, New Year, 1945
XI Berlin, February 1945
XII
XIII Berlin, April 1945
XIV
XV Berlin, end of April 1945
XVI
XVII Berlin, beginning of May 1945
XVIII Berlin, May 1945
XIX Berlin, July 1945
XX Berlin, August 1945
XXI
XXII Berlin, end of June 1946
XXIII Autumn 1946
XXIV Berlin, Spring 1947
