This appear to be a high quality aged reproduction of a German paratrooper helmet. Has an excellent Medic sandy paint scheme!
Large size as well, appears to be a 68 or 71! The item "WW2 German Helmet 38 Paratrooper MEDIC Large Size M35 M42" is in sale since Friday, May 1, 2020. This item is in the category "Collectibles\Militaria\WW II (1939-45)\Reproductions\Germany".
The seller is "southern-surplus2016" and is located in Clinton, Mississippi. This item can be shipped to United States.