the proof marks will tell a story.
the Springer's Erben double rifles in 10,75x52R were made in Liege/Belgium so having belgian proof marks.
a common double rifle in 10,75x52R Gründig was made for Gründig/Dresden by Sauer&Sohn so having Suhl proof marks.

but I say common, they were never common.

springer's erben catalog, early 1920s,iirc

they offer a hammerless double rifle, here Doppelstutzen ( very austrian)

and single shot stalking rifle with hammer

here I have pictures of an original