German WW2 Army Heeres dagger

German WW2 Army Heeres dagger, unmarked, the blade is cleaned , traces of unprofessional cleaning. The grip are dark yellow color, and the fittings are both made from a NURAL metal, which is normally mix of 70 % Aluminum, with other cheap metals like zinc, it’s coating is partially fall ( approx.20 %). Steel scabbard, has some minor rusting traces from one side.