The front aircraft is an Air Charter Frightener, the one behind I think is a Skyways Avro York - I would think the picture was taken in the mid 50's at one of the German airfields - could be Templehof but possibly Hannover or Hamburg. Air Charter flew Tudors on the Berlin operation and possibly DC-4's
My father flew the Yorks - and Hermes - with Skyways from 1955 including the Berlin run. I have a few pictures he took, I think, in Hannover at that time but the tower in the pictures is not that in your picture - I really must figure out how to get pictures onto this site!!