Well I got this off ebay a few days ago for buyitnow $100.00 it has some marking on the one side of the helmet as shown in the picture. If anyone knows anything about the marking it would help me out a lot.
got it today in the mail and it has trench art inside the helmet and shows the same sqaure with the line throught it and says 31 on top of it? Also has his name in it with the same material that was used to make the square with the line in it pictures are coming soon