>the wear on the Great Step must have a connection to >the portcullis system that should be considered. The fact >the portcullis door and ante chamber system are there
> at all, among numerous other things, is reason enough >against the tomb theory, so don't get hung up on this as a >selling point as it might limit your thinking and only invites >nonsense from particular posters that only takes away >from the topic at large which is how did they work (and
>what were they used for).
The portcullis slabs remind me of a blast gate, like they would lower the slabs for protection and then fire up the grand gallery. Or perhaps lowering the slabs and firing up the kings chamber. The areas around the antechamber as well as the kings chamber and the sarcophagus are all blackened maybe by extreme heat.