Eckhorn hunting knife. Most interesting accoutrement. Not sure I've seen one cased in such a manner? I fancy an image of that colourful Imperial Eagle in the case top.

"Hirschfaenger" (hunting dagger), made by Carl Eickhorn, Solingen, Germany.

Austro-Hungarian Empire Imperial Eagle w/ sword & globe/orb.

The small coat of arms of Oesterreich-Ungarn (1806-1915), in the middle from left to right Habsburg, Österreich, Lothringen, parts of the empire.