My opinion based on the crappy pictures is:
The rifle is a real sniper, with all the "correct" markings added by an (ignorant) owner (or retailer) trying to "correct" the markings.
1. The cut off marking on the right side has been added
2. the "TR" has been added to the left side of the wrist
3. the "T" has been added to the receiver
4. the rifle serial number has been added to the scope rings.
It's difficult to tell with early guns if the later scope has been added in service, or fitted later. originally the rings were not numbered to the rifle until post-war? So the later scope could have been legitimately fitted, and the original rings numbered at that time.