I searched this, and looked around a lot and couldn't find exactly what I was looking for. Anyway, I have this helmet sitting in the top of my closet one day I remembered I had it sitting up there. So, I got it out and looked around on it to see if I could figure out what exactly it was. I asked my dad and he said he got it from a guy at his work. My dad said he didn't know what exactly it is besides it being a helmet. As I'm holding it it feels very lite-weight very very lite weight. I'v worn real helmets and those were much much heavier than this one. So, I thought maybe it was a World War 2 para troopers helmet, since it weighed nothing. But it also felt cheap and not well constructed... As if it wasn't meant for warfare like a replica. On the insides there are straps that look like they've been put through A LOT. They look really discolored, frail, and thin. It has markings on the front, left, and right sides but not on the back. Here are some pictures: (Sorry for the bad picture quality) Any help with greatly be appreciated.