The plane

The JU-52 airplane was one of the most successful planes before the Second World War. It is often referred to as "Tante Ju" or "Aunt Ju".

24mm f/4 1/640s ISO3200, Canon 6d Mk I with Canon EF 24-105mm IS USM L-lens

24mm f/4 1/640s ISO3200, Canon 6d Mk I with Canon EF 24-105mm IS USM L-lens

It was brought into duty in 1932 and was built until the early 50s. German Airline Lufthansa selected the JU-52 as its main plane in the early 30s. As a speciality, this plane's exterior was made from corrugated iron. 

This specific foto was taken in Deutsches Technikmuseum in Berlin, a place, you should always consider visiting when being in that city.

Find more information about the JU 52 in "Flugzeug Legende Ju 52" by Helmuth Erfurth (Amazon DE) or in "Junkers Ju 52: A History 1930-1945" by Robert Forsyth and Eddie Creek (Amazon US).