Hello,
A nice photo of the DFW B.I named Linsingen is currently on ebay at:
https://www.ebay.de/itm/SUPERSELTEN-...gAAOSwvfxekbrh
and also the machine named Nepomuk I believe at:
https://www.ebay.de/itm/SUPERSELTEN-...MAAOSwDX9ekb9c
Both machines served at the DFW Flying School atLübeck-Travemünde.
Regards,
Clint