If English is your first language, you are better logging onto the URL using Google Chrome as it has a translation facility.
The copyright for these images is held by the museum and the estate of Artur Fenslau and I acknowledge this for their use on this blog and post which is non commercial.
So I've selected a few of the images for this post...some from the Swiss GP in 1935 and 1936, some from some minor GP events in 1932 and 1933 and the others from the races near Vienna in June 1939.
My thanks for Charlie Huckins for picking up the original date error I'd made. I'd typoed it as 1935, when it is 1936.