The oldest extant rituals of the Lodge of Perfection are contained in the Francken manuscript. Up until now there were only three known surviving copies. A fourth copy in the possession of the District Grand Library at Lahor, Pakistan had been reported. Apparently that copy has now been found. You can read about it here.
This is a find of tremendous importance for Scottish Rite Freemasonry. In the realm of biblical scholarship it would be like finding a second copy Codex Sinaiticus.