Heinz Lindermann's 1950 eigenbau, the name deriving from his own. The engine was a BMW twin, linered down to 500cc and driving through a VW gearbox..
He didn't have a lot of luck with six DNFs to his name but eventually got sufficient reliability to take tenth in the 1951 West German Championship.
Some results for Heinz:
The start at the Nürburgring. June 1953
If you have any more information or pictures, please let us know.