Of course we don't know how long they used it for, so we don't know if this was from World War II or Vietnam. We think it is a M1 Helmet Liner, that is the best match we could make with photos we found of similar helmet liners. You will receive exactly what you see in the photos and as is.
The height of the helmet is about 7", front to back is about 10 5/8", and side to side is 8 1/4. We couldn't find any other helmets with a painted insignia like this. We only found patches like the insignia.Please view all photos for a better view at contents and condition. If you have any questions please feel free to ask and we will do our very best to answer.
We will be happy to answer any question that you may have. We sell mostly used and vintage items. We always reveal any and all issues with each item to the very best of our knowledge. Thank you very much for visiting and we hope you come back soon. The item "Vintage US Army Air Force Military M1 Helmet Liner World War II Vietnam RARE" is in sale since Friday, August 3, 2018.This item is in the category "Collectibles\Militaria\WW II (1939-45)\Original Period Items\United States\Hats & Helmets". The seller is "treasurefinder1977" and is located in Medford, Oregon. This item can be shipped to United States.