I am trying to make out his signature and I can't but the date says 7, Feb 1927, Berlin
The signature is written something like this: (again what I can barely make out)
Marx Z (this letter is debateable) Rrifolhunzlan (this is also is probably mostly wrong)
There is a picture, and he is a bald man, with glasses, and a white mostache.
Any suggestions would be helpful.