I am having trouble with my computer and couldn't get the photos to come up,but from the one Raimey posted,I couldn't see proofmarks.This indicates to me that it may have been made before 1893.A chambercast and sluging the bore will settle the caliber question. A 9.3x72R chamber will be around .430" at the head area and a 9x47R(MB)will be about .520".You can eliminate one of them by measuring across the chamber.Of course,this says nothing about the case length.
Mike