Welcome gentlemen. I have been in possession of this pickelhaub for several years and I am constantly wondering what it could be? It is made I would call it "old plastic" but it is not vulcan fiber. It is quite well reproduced, there are seams and even the rounding of the leather on the back peak. It looks like a period item and I don't know what application it was, if it was used in the theater, although in my opinion it is too carefully made for that. Hope to help with identification. Best regards.