EXPERIMENTAL HELMETS OR RARE HELMETS - HANDCARTZ。Rare! We did some research and can\'t say for certain as to what branch or division these would have been assigned to. Labeled 56-58 for sizing Has some minor scrapes and scratches but what\'s rare to find is the interior leather lining and chin strap to be in such good condition after all these years!! Typically they\'re very worn and crumbling where as with this helmet you can see they\'re in great shape! If you have any information on this we\'d love to hear about it! Any questions feel free to ask!