Most of these rifles were customized for some "boss" of the occupant force.
Albin was a top notch engraver of Ferlach but the time was difficult and any work was good to take.
Until 1945 the marking 49.xxxx (followed by serial number) was the proof house code for Franz Schmeid, after 1945 it becomes the code for Franz Schmid. Notice that the code is before the SN, not after.
1253.49 above proof marks indicates that's the 1253 rifle proofed in 1949.
All this must be confirmed by a close examination of the different markings.

DORLEAC
www.dorleac-dorleac.com