A favour if I may ask one.
My main research interest is American cars exported/manufactured/assembled in countries outside the US.
I have never heard of or read of "Hudson-Essex Motors GMBH" nor the coachbuilder Kathe and I find nothing on Google, either the US or German sites.
Is it possible, so I may further expand my reference library, to either link something about this company/ies or PM me with further information??
And, my congratulations to 4popoid for his tenacity. I also spent almost three hours on this puzzle and came up with nothing.
Bill