Replica of that classical airplane displayed at the STR observation deck, built by Manfred Pflumm at Schwenningen. This one is called the first real passenger aircraft.

First flown in June 1919, the metal Junkers F13 was one of the first real airliners. No aircraft could look more like a Meccano toy plane, but have a good look and see how advanced it actually was for its day. The aircraft shown here was delivered to Afghanistan in 1928 and by 1937 it served with the Afghan air force. In 1968 its wreck was recovered from a scrapyard in Kabul and donated to the Deutsches Museum. Reconstructed and on display since 1984. According to some sources the construction number is not certain and could also be c/n 2019. The real D-366 was c/n 723.