Bücker Bü-131 “Jungmann” in Manchukuo.
Two photos featuring two Bücker Bü-131 “Jungmann" belonging to the Manshu Kumu Kyokai (Manchukuo Air Affairs Association), which was formed on August 1st, 1939, to control all civilian aviation in Manchukuo (excluding Manshu Koku K.K. - Manchukuo Aviation Co. Ltd.).
Kumu Kyokai purchased five Bücker Bü 131 “Jungmann" from Germany, which were used for flight and glider-tug training. They all arrived on March 20th, 1938, and were revealed to the public at the Mukden East airport, which handled exclusively civilian traffic. The two aircraft in the photos above have the Civilian Manchukuo registrations M-83 and M-84.