Kevin,
As you know the Generic type B was a later cross-guard and 95% of them will have a tang hole cut or filed to accept a shouldered tang blade.
The one posted above has a machine punched perfectly rectangular clearance hole with no sign of filing or hand fitting, milled for a tapered tang blade which is over-sized, typical of the early 60's reproductions.

These copies are extremely convincing regarding the detailing of the eagle. The comparison original cross-guard is from a period Generic B Christianswerk matched with a tapered tang blade, also pictured is the over-sized tapered tang of the reproduction dagger.