Hi Andre,
Yes I would very much like to get in tuch with mr. Schwan. As I understand, other people have also tried to get in tuch with him but without result. He then had no e-mail address. I have also have got the information that he lives for longer periods in St. Petersburg, Russia.
If you could provide me with his e-mail address it would be super. If you click on my name you will find my e-mail address.
Very best regards
Jan