Adler

Adler was a German manufacturer based in Frankfurt am Main that produced bicycles, cars, motorcycles, typewriters, and other machinery between 1880 and 1957. The company was founded by Heinrich Kleyer and operated under the name Adlerwerke vormals Heinrich Kleyer, taking its name from the German word for eagle. Its factory in the Gallus district of Frankfurt remained standing after the company's automotive operations ended and was later restored for use…