I bought this at an antique mall some years ago. I don't know much about it other then it is a German style helmet cover. The item "Helmet Cover" is in sale since Sunday, May 07, 2017.
This item is in the category "Collectibles\Militaria\WW II (1939-45)\Reproductions\Germany". The seller is "zeffle" and is located in Marysville, Ohio. This item can be shipped to United States.