Tristan-
Thanks a lot for helping out on the ID's.

I would say your right on Freiherr von Ebberstein.
From the little I read he had ties with Heydrich and a interesting nsdap carrer.

Moving on to post a card.
Grimminger looks to be wearing a 1929 RPT badge.
I wonder if these were given out at the actual event and if this particular photograph was taken during that rally.

Also... is his iron cross with ribbon worn in a out of the ordinary way?

rsz_p1020211.jpg (150.66 KB, 204 downloads)