OK, please bear with me here:
I noticed immediately a few oddities on the car.
The most important: the stepping board.
Adler left that stepping board off, in nigh all their cars.
There is an exception: the 1931 Chrysler CM6 Adler Trumpf.
Now, WHY it was called the Adler Trumph, though being a Chrysler, is unbeknownst to me, and I haven't come information about it.
Could be, I am wrong, however, it seems, seeing this car was in a few books I had, always with the 1931 Chrysler in front of the name.
Going to google this oddity, I'll let you know what, if anything turns up, I found.