Wehrmacht Heer M 42 Feldmütze, unusual combination.

Wehrmacht Heer M 42 Feldmütze. Separate eagle and cockade, the eagle is not  standard, it's a  long wing variant. The Panzer type skull is original to the hat from the war time period and may be the issue of one of the Wehrmacht traditional units. The hat is in size approx 57, however the markings looks like 58. It's well worn condition, but the wool and insignia is perfect, as well  as the liner, but it has some staining due of wear. The markings are ultramarine ink marked and faint due of use. Untouched example.