My guess, is a US advisor probably picked out a nice one to take home as a souvenir and it just came out of the wood work from his estate.
My guess exactly.
The seller was a Vietnam vet. I never buy the helmet for the story but he told me he got it at a flea market.
He said that the person who sold it to him was another Vietnam vet who had his duffle bag full of all of his stuff to sell.
The helmet was found at the bottom of the bag.
Again, as I said myself DANG FINE HELMET!!!!!
Fortune favors the brave 644th td
Thank you Marty