Hi. This is another M1 that I have had for a couple years. I just wanted to get you guys opinion on what war it was from and what kind of liner is with it. the helmet has a m310 number swivel bails and rear seam. the liner has no makers marks just a + on top dead center. This is the first one I bought and this last Saturday I got the early Hawley so now I have 2. Again I am glad that I joined this sight. Thanks.