Junkers Ju 160

The Junkers Ju 160 was a single-engine passenger aircraft. Derived from the Ju 60, the Ju 160 was intended for the same market as fast airliners such as the Heinkel He 70 Blitz and the Lockheed Model 9 Orion.

The German flag carrier Deutsche Lufthansa used it mainly on domestic routes. This model entered civil service in 1935 and was used on some Deutsche Lufthansa routes until 1941. Source: Wikipedia