Thatís a very rare crossguard only recently discovered and classified at this point as unattributed. I have only seen this guard on Emil Voos I have two on my site you can compare yours to. If your Klaas was textbook in other respects and the finish all matched I would take another look at it. This guard is so rare itís unlikely it was married to this dagger.

Collecting Interests - Heer Daggers - Waffenrock - Portraits -