Hello good people,
Yes, incredible finds.
Among all photos included in that album:
http://www.ebay.de/itm/IIWK-FOTOALBU...item3a987e7dd9
We can find the following picture (see attachment) which has been commented as - most probably - Trubenbach's machine.
I'm quite suprised since I thought Trubenbach, being Kdre of the Geschwader during this period, flew a typical Doppelwinkel strich machine.
Personnally, I think that photo is Wiese's machine. Simple "Winkel".
But I can be wrong, indeed.
Best regards, Franck.