Adler Trumpf Junior Sport Roadster – 1935 French historic registration title In 1880, Heinrich Kleyer, a German engineer, founded a company producing bicycles.

Within 5 years, the small Frankfurt factory was transformed into a large company, and renamed 'Adler' (eagle in German).

A direct competitor of BMW and Opel at the time, Adler produced a myriad of cars, motorbikes, typewriters and trucks, before dying a few years after the Second World War, disappearing into the Volkswagen fold.

In 1932, Kleyer designed the Trumpf, a small-displacement mass-market model intended to provide affordable motoring for the German population.

Two engines were initially offered, before the arrival two years later of the Junior version, with its small 1-litre 4-cylinder engine! Available in a range of open and closed body styles, the prize for elegance will go to the sumptuous Sport Roadster version, made entirely of aluminum, of which only 250 will be produced.

The Adler brand would reach the pinna...