Only four examples of the M 24 were built and only D-1767, the first one, saw use as an airliner. It was first flown in July 1929 and delivered to the Bavarian company NOBA in February 1930. Eight passengers could be carried. Photo by: Walter Hahn / SLUB / Deutsche Fotothek

Wonderful shot taken near Moritzburg, north of Dresden. Note the route sign on the aircraft, as on a train. By 1930 NOBA's network stretched far beyond Northern Bavaria and in January 1931 its name changed to Deutsche Verkehrsflug AG - DEVAG. The company was liquidated by the new Nazi government in 1934. Photo by: Walter Hahn / SLUB / Deutsche Fotothek

Willy Messerschmitt designed the four-seat BFW M 18 at the request of Theodor Croneiss and his North Bavarian Airlines (NOBA) acquired a fleet of 19 examples. D-1347, D-1405 Gera and D-1365 were likely pictured at NOBA's base, the former Fürth / Nuremberg - Atzenhof airport. Rob Mulder's European Airlines website has a comprehensive article about this interesting company. Photo from: ETH-Bibliothek Zürich