Hey forum members.
I acquired this from another collector friend in 2018 and would say it was my best purchase of last year. The vet who brought this home was Curtis Williams from Oklahoma and later Washington State where this helmet surfaced. I was able to find out some more information about him including the fact that he was an MP. I am not 100% but believe he most likely served with the 202nd MP company which saw service with the II Corps in Tunisia and later in Italy.
At any rate, enjoy the helmet.