In my humble opinion, the top initially has the appearance of cocobolo. Also hints of Rosewood or some other exotic timber.
I’m undecided whether its a one or two piece top. My thoughts are one-piece as there is little evidence of book-matching. Or It maybe have been cleverly slip-matched (something that Paul did in the early days).
There’s also something that makes me think this may be a lighter coloured timber that has been stained to give the appearance of another timber. The grain pattern doesn’t have the rich swirling appearance of cocobolo.
Something else that is unusual is the depth of the rout for the lower control knob. It may be a trick of the light!
Also, maybe due to the colour of the timber (stain?), the angle of the photo and the reflections, the carve seems slightly deeper than present day PRS. Is there such a thing as a “vintage carve” with PS? My knowledge is limited.
It would be great to see some more photos and know what it is.