Michal199, first let me welcome you to the forum.
Your dagger is a remarkable nice conditioned 2nd luft by WKC (what you already know
). In such a condition all daggers are at least scarce. I appreciate the artificial burnishing of the dagger parts (kind of grey/blue) which does proof the near mint condition.
BTW it seems to have one of the desirable artificial ivory grips.
I personally doubt that these 2nd lufts you can be classified into a certain period, but due to the best execution of the burnishing, the gilded swaz�, the artificial ivory grip and the nicely produced grip wire I would think it was manufactured before war or at the most when war has started.
Regards,