Army Officer Dagger. Maker E. Pack & Söhne Solingen, Aluminium (!)

In a very good, slightly used condition. The yellow grip without chips or breaks. The crossguard and pommel both made of aluminium(!) And undamaged. The iron scabbard with some signs of use but no dents. The blade clean and marked near the crossguard with the maker „E. Pack & Söhne Solingen“. With originally bound dagger knot.
Unusual aluminium parts dagger.