Come a bit closer and listen to an Armourrer who's been round the block several times. In fact, hundreds of times. I mean a real armourer. Not an enthustastic amateur who's read a few books and fixed a few rifles. The mere idea that your rifle could be original - or even remotely original after 100 years of service and probably 70 of those in the Indian Army is so far removed from reality as I know it as to be virtually impossible. Sorry to be blunt and forthright but that's how life is in very probably, every Army in the world. Indeed, until 1965, Britainwas still training Indian Army Armourer Artificers. It has been rebuilt, parts changed etc etc etc more times than Humpty Dumpty*
* English childs poem