I am not sure if anyone else is going to carry on with this one but I have hours of research in it so I will give it a go.
Hellmuth Butenuth was an engineer, eventually hired by Hanomag and involved in their development of a small car. He was active in some racing activities with the car and eventually was awarded the Hanomag franchise for Berlin/Brandenberg.
There is little information that I could find after that until 1945.
He then, was involved in the development of steam engines. Again, the information I found was very fragmented but I will try.
Apparently, 4 Ford vehicles were converted to steam, using a coke/coal fired primary engine, presumably a Ford. The steam engine was said to be a two stroke 4 cylinder boxer motor.
It seems an A. Simon was the primary developer of the concept and I have no further information yet on him. It also seems the vehicles were built 1945-1949 or 1946-1952, depending on the source, by the company Lenz and Butenuth. There is also a brief reference to the "Berlin Steam Engines Society" but I could find no information on that organization.
I gather the steam engined Fords were not successful and only 4 were produced.
Around 1948, he started the company Econom to produce trucks but could not compete with larger firms and closed that company in ca. 1954.
Shortly after that, he was awarded a Ford dealership franchise in Berlin/Spandau. I think it still operates under that name although Butenuth passed away in 1990.
Below is the only other photo I found, all 3 seeming to come from all sorts of ebay type sources, and I suspect all 3 photos are of the same truck.
If anyone has more information and/or photos, I personally would appreciate it if it could be posted here. A most interesting and very small part of automotive history.