Just over seventy years ago, on 4 September 1953, Furtwängler began his penultimate season. With the Vienna Philharmonic, he performed a concert in Munich, in the Congress Hall of the Deutsches Museum, before flying to Edinburgh and its festival for a series of concerts with the same orchestra.
We already heard the sound — the SWF has published Egmont and Beethoven's 4th — but here's the image, a snapshot taken during the 'Sitzprobe'.