The people I do recognise are (standing up, left to right) Charly Caracciola (in the beret between the man with the moustache and the man with the hat) Christian Werner, Rudolf Caracciola, Ferdinando Minoia, Otto Merz. (Sitting down on chairs left to right) Ferdinand Porsche, Willy Walb, Gastone Brilli-Peri. The man with the hat next to Charly Caracciola looks familiar to me. I am sure I have seen him in other photos from the period - who is he? And who is the driver/co-driver sitting cross-legged at the front? I do know, from other photos of the same group, that the obscured man with the white armband to the right of Merz is a young and slim Alfred Neubauer. Is that Adolf Rosenberger or co-driver O Kuhnle standing up at the extreme left behind the boy?

I am guessing that the second photo is also from a German Grand Prix in the 1920s but I am open to suggestions. Clearly that is Christian Werner and Ferdinand Porsche, but who is the driver/co-driver on the right? Again I am sure I have seen him elsewhere but can't put a name to him.
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