In Fingerprints I supported the Vyse forgery theory. Later when I got into the relieving chambers myself and saw that some quarry marks disappear far back into the gaps between the blocks I felt that I must be wrong to support the forgery theory -- because no one could have got a brush into those gaps to carry out the forgery. Therefore the quarry marks must be genuine and must have been put on the blocks before they were put into place in the chamber. Accordingly I retracted the position I had taken in Fingerprints.
It's possible I threw the baby out with the bathwater with that retraction. Unlike the unforgeable quarry marks positioned between the blocks, the Khufu cartouche is in plain view and could easily have been forged by Vyse.
I do not insist it was, I just accept that it could have been, and that some interesting doubts have been raised over its authenticity. I await further evidence one way or the other.