It is Stutzen, not Stützen. Stütze is the German word for support/rest/linchpin, not connected with guns

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They should had removed the action from the stock. Under the wood should be the proof which would indicate in which year it was made.
This rifle is a bit of a head scratcher to me. The super thick black finish makes me think the rifle is hot dip blued, what I would not expect from a high end factory rifle. Also the front scope foot (Wiener Schnäppermontage btw) is sitting on what appears to be an added ring to the barrel shank. The scope serial 38175 btw is pretty early. Does anyone have any idea as to what the thing in the stock foreend is for? Also the Springbacke (that is the German word for the "jumping cheekpad") setting appears to be missing something at the bottom; why for that hole at the rear bottom? It doesn't make sense like that. I would expect something like a locking mechanism there. Finally, the rear scope ring is sitting in a part that is engraved. If it was factory fitted with scope and engraved then that area would had been left spare and NOT engraved under the scope foot, but very nicely worked around it.