Absolutely horrid, Junk I'm afraid.
this piece of junk ghosts around every few years like sewerage borne on a foul, foul tide.
This kind of textile RZM tag made the rounds in the early 1970s, and this item may be really that old, although I am not wholly sure.
Hence, something that is forty and more years old need hardly smell "new," but it its appearance that is so terribly awful.
I cannot exclude that some armor crews had some leather headwear, but this is surely not it......
Nothing but a fantasy piece. Sad indeed.
Used in this perhaps??????
" When you're chewing on life's gristle, don't grumble, give a whistle "