Thank you very much for starting this thread; it was indispensable to confirming the identity of this CdV in my collection. It is most definitely Jobst Freiherr Knigge of Ulanen-Regiment Nr. 13, as seen above.
The rifles are Gewehr 88s. The pic is from between about 1910-1914, if I'm not mistaken. The gentleman on the far right was in the German army in 1897, since he wears the Kaiser Wilhelm Centennial Medal.
Is anyone aware of any place that is reproducing the M1860 version of the pickelhaube?
I've seen the Czech reenactors that do the Königgrätz reenactment with them so I know they are out there somewhere; I just seem to have trouble finding them for sale anywhere.
That battle-damaged Mecklenburg pickelhaube is extremely impressive, I can't imagine that that many battle-damaged 'haubes still exhist in this day and age.
This helmet might have a connection with the city of Nürnberg. I think we can all agree that this most likely isn't a military pickelhaube.
As Michel above mentioned, the lion's head chinstrap hangers are distinctly Bavarian. The harpy on the wappen plate also looks almost exactly like the...