<HTML>Michael,
I see what you mean now. Seems that Hawass & Lehner are either saying they were 18th dynasty repairs made to look like OK or that 4th Dynasty blocks were relaid at a later time on the Sphinx. Schoch seems to be saying there were 4th dynasty repairs on the Sphinx and therefore implying that it was there before the 4th dynasty. This leaves anybody who has taken the trouble to read all this wondering whether any of them really know for sure.
If Colin Reader is about (and has time to contribute) it would be interesting to hear what he has to say on all this.
Cheers,
Duncan</HTML>