Original WWII USMC 'Bakelite' EGA. I do not believe it is actually made from Bakelite but another early plastic. This one has an even consistent curve to it, which I do not see in any other original examples, so I am not sure what is going on there. It almost looks like it was intentionally made this way but at the same time, it is possible that it warped over time and improper storage. AS-IS. It does have rust and general wear. Only marking is a '4'. These were used on both men's and women's hats.