This car was built by Hans Rohrbach of Hamburg, Germany. In 1922 he founded the Leichtfahrzeugbau-Gesellschaft for the exploitation of his patents like a unit-body car. He is mainly known by a Modern Mechanics article from 1931 about his three-wheeled car with rear steering, which he built using a NAG 8/24 PS engine (
https://www.autopuzzles.com/forum/2016-45/wendax-1866). Other ideas of him were a light car with two engines set in the front wheels and a reaction engine not requiring any cooling. In 1948 he showed an updated design of his three-wheeler as a model at the Leipzig fair.