I was very fortunate to find this a year-and-a half ago. It's a wonderful Pickelhaube ensemble for a Bavarian Reserve Officer of Chevauleger Regiment 2,4,6,8, or Schwere Reiter Regiment 1.
The person I acquired it from has had it stored in the carry case for the past 30+ years. When I opened the carry case, it felt like I was stepping back into a "time machine" so as to say.
It's not often that one comes across a set like this, complete with the spike, trichter and parade bush, and the field cover all together in the carry case.
It's a shame that someone long ago cut the straps that connect the spike portion of the field cover to the helmet body cover portion. At least it's all there, and the straps are there, albeit cut as they are.
All the Best,