Hi, and welcome to the forum!
I have edited you title and moved the thread. This is an Army (Heer) Officers dagger and is not SS related.
Sadly it has had the swastika removed from the crossguard. This will seriously hurt the value.
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This dagger is heavy Frankenstein. (Made after WW2.)
Crossguard is generic type B, scabbard is 4. Eickhorn Type.)
Ferrule is cut down, and the eagle swastikas is missing.
Additionally, these dagger is cleaned.
Not for my taste, not little.
The correct generic B Herr dagger should look like these one;