Yeah I know, it's seams to be almost impossible to identify this 'automobile'.
I've been looking at many of the more 'obscure' German makes of the time, comparing the radiators.
Adler, Protos, Wanderer etc...
The closest I've come are either an early N.A.G. Neue Automobil-Gesellschaft AG or the even more obscure 'Fulmina'.
I tend to think it might have been a Fulmina, although I haven't found any surviving vehicles of that make.
What I did find is another photo of the 'move' - a lot of ideas for a diorama...

Cheers: Kent