So I bought this today at a local military suppliers place. I don't really now to much about it. When I looked up some of the things that said how to tell the difference of WW2 and Post War. One of the things was the chin strap buckles were rectangle in war and in post war they were trapizod shaped. The next thing was that the chin strap was leather and not webbing as in post war. The vent rivets look different then anything I've seen on the net. So what do you all think?