These look great Pierre, especially the western handle ones!
Not up yet? At least if I have the correct site that will not be named I don't see anything.
What he said
With all that steel in the handle I suspect them of being rather handle heavy which corresponds to the German taste, with rock-chopping out of the shoulder.
This is the type of knife where differential hardening will indeed be used. On most ancient pieces the back of the knife or the center in double edged