Later OH-ALF, LK-4 and OH-MVD. Photo by: Aarne Pietinen / Finnish Heritage Agency

Later OH-ALE, LK-2 and OH-MVB. Photo from: Eino Antero Bergius / Museum Centre Vapriikki (Tampere)

Photographer: Rainer Haufschild.

Ex K-SALF. Later LK-4 and OH-MVD. Photo from: Aarne Pietinen / Finnish Heritage Agency

On display at Deutsches Museum München. The F-13 was the world's first metal airliner, built using corrugated duralumin. On Armistice Day, Hugo Junkers ordered a switch from military to commercial aircraft. First flying on 26 June 1919, the F-13 carried four passengers in an enclosed cabin complete with cushioned seats, the first to provide passenger seatbelts, lighting and large windows. The original D-366, c/n 723 was named "Eismöwe" and operated by Deruluft. Due to its size and economy, many airlines started operations with the F-13, of which 322 were built.

While G-EBZV was registered for almost nine years, this undated photo shows it between delivery and the fitting of a Bristol Jupiter radial in place of its Junkers L5 inline engine. The location is likely to be London Air Park at Feltham where owner Freddie Guest kept it, G-EBZV was sold in Sweden as SE-AFW in April 1937. Photo from: Paul E Garber / Smithsonian Institution

Search for Umberto Nobile's airship Italia. Photo from Dutchman Sjef van Dongen who worked for a coal mine on Svalbard and took part in the international rescue operation. Photo from: Zeeuws Archief

During the 1929 summer season the magazine Suomen Kuvalehti offered free rides in this aircraft at various places in Finland. The photo was taken at the start of the campaign at Helsinki's seaplane airport. Note the double (post) horn in the flag used by Aero O/Y. Photo from: Finnish Heritage Agency

Junkers F13 production ran from 1919 until 1932, then an unusually long time. K-SALG was delivered to Aero O/Y in May 1928. The aircraft was soon sent to Norway to take part in the search and rescue operations following the crash of the airship Italia. Photo by: Harald Rosenberg / Helsinki City Museum

Finnair's predecessor Aero O/Y sent its newest Junkers F13 to take part in the international rescue effort following the crash of the airship Italia. The large building is the Tromsø leather factory. The police station now stands where the seaplane is. Photo from: Nasjonalbiblioteket (Norway)

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.