Raimey,
I see only one Imperial Eagle, it is the acceptance stamp applied by the arsenal ((unit armorers?) to the already scoped Sauer rifle, built around a pre-98 transitional action.

buckstix
You have mentioned a desire to scope the 8mm and I cautioned against changing the rifle in a way that can't be undone. I have noticed that the front base is dovetailed, and the rear one is screwed down with 4 staked in screws. They can be carefully removed (with screw locations preserved, so that when replaced the stake marks and engraving will match) and a Cerrosafe model of the interior of the bases can be made as samples to duplicate in making new rings. This type ring will be considerably easier to make and fit than Shuler claw mounts would. An important consideration is to ensure the locking lever in the front base doesn't go all the way down and bottom out. If it bottoms out, you don't know if it is tight.
Mike