Any ideas on this cap?

[Ron C.]

This is the only picture I have of this cap. I used to own it......brought it back from Germany in the mid-70's. I disposed of it in the 1980's, I think. I never did know what it was, and was always curious about it. I recently re-discovered the picture, and thought I would see if anyone knew what it was.

Thanks,
Ron C.

[Soldat de Fer]

Hello
Is it not a WW1 austrian cap ? Seems to be or maybe Swiss.
Regards
Pierre-Yves