The paint scheme is the original color for the southern theater not sure where North Africa, Sicily or Italy. Inside has the apple green paint. The chin strap is made in 1942 see picture for the maker.
The liner has the number 57 stamped in ink for the correct size with the original liner tie piece for the center. Maker of the helmet is hard to see but is reads DN9 size is NS64. Any questions feel free to ask. The item "Original German WW2 M40 model Helmet complete" is in sale since Saturday, April 23, 2016. This item is in the category "Collectibles\Militaria\WW II (1939-45)\Original Period Items\Germany\Hats & Helmets". The seller is "mtayler74" and is located in Weatherford, Texas. This item can be shipped to United States.