We have only seen bits and pieces of the gun and the case.
Plenty room for speculation.
I see the possibility that the gun did not come from Vienna in this case. The whole set may have been composed later.
Those brass plates are engraved (or actually stamped ?) quite crudely, not in the quality and the spelling (e.g. "JON" or "VIENNA, AUSTRIA") one would expect.
One rather would expect some trade label from Kalezky in the lid of the case?
The rifle once had a scope, the rear base for a "Wiener Schnpper-Montage" can be seen. Now look at the the inletting or the "bed" for the barrels in the case. There is room for the scope bases, but I see no scope.
Not logic to lovingly compile a rifle and a hunting dagger in a case but leave out the scope.
Finally, I am still puzzled about the .45-70. Would like to see proof marks, as all of you.

fuhrmann