Wwii german factory helmet decal krauss maffei manufactures of half track military vehicles. With chinstrap and liner. See my other listings for more vintage knives and military collectibles for sale. #wwii #german #helmet #forsale. The item “Wwii German Halftrack Factory Worker Helmet W Liner Decal Krauss Maffei” is in sale since Monday, December 31, 2018. This item is in the category “Collectibles\Militaria\WW II (1939-45)\Original Period Items\Germany\Hats & Helmets”. The seller is “jusm888″ and is located in Deltona, Florida. This item can be shipped to United States.