After his Watkins, he mainly used Les Pauls. He had a goldtop, I think a '56, then he later had a sunburst LP, which was much the same as Peter's ('59?). Whether or not he ever used Peter's is hard to tell from the videos, since they looked the same.
After that he had a three-pickup Les Paul Custom "Black Beauty" - the one he smashed the night he refused to go onstage in '72, after which he was fired. Whether or not that guitar survived that night, I don't know.
I think these are all the guitars that he owned and used while with Mac. In the live vid of "Like Crying", he plays a pale Telecaster, but I'm not sure if that was his or borrowed from someone else.
Supposedly he used to borrow Jeremy's strat in the studio sometimes, but I'm not sure. Maybe Jeremy could enlighten us?