Here are some more photos taken by my Grandfather with his home made camera. Most are from the 1938 Grossglockner hillclimb in Austria (then part of Germany). Hans Stuck won in the Auto Union whilst the Mecedes drivers were Hermann Lang and Manfred von Brauchitsch. (Thanks to Vitesse on the Atlas and 10Tenths forums for the information)
The rotary engine and strange cyclecar I think were taken in Paris - perhaps someone can tell me more about them.