Finally I succeeded to get “Rollin Motors” (1923 - 1925) on the Wikipedia. They are, rightly so, quite strict about the text, references, pictures etc. Therefor I choosed for less text to start with and get it less difficult approved. Now the page is created it can be improved through more information, references or pictures. So, if you can improve the page, please take some time for it. Such a rare oldtimer/classic-car earned extensive information on Wikipedia.
Here the link:
https://en.wikipedia.org/wiki/Rollin_Motors