Good question. It looks as if it was on there from the point of manufacture. I don't really see a reason for putting paper in there, unless a few of the wooden forms they used for the leather shells were shellacked or similar and paper was used as a way to keep the leather from sticking... and this paper happened to stick to the leather? No, dumb idea.
It wouldn't add any strength, unless the shell is some sort of composite that is hidden by the paper... :-k :-k :-k Brian, Karel, others, any ideas?
The neck perlring has to be silver too, like this Garde Pionier Helm in my collection, and only the stars and chinscales have to be gilt:
Your original tip seems to have been broken and resoldered, without the perlring....A gilt perlring does not fit a white fittings helmet, no matter if Garde Pionier, Garde zu Fuß or Garde Fusilier Regiment. White frontplate = white spike + white front and back trims.