Do you have a picture of the ignition unit inside the starter cover of that saw - or could you refer what it says on it?
Your posts triggered a renewed interest in determining if my 52 is a straight 52 or a 52E - but I don't have it here (it is at my cabin), so I can't look under the flywheel anytime soon?
The unit inside the starter cover of mine doesn't say Pagani or SEM on it - what it says is "W35", and then "PART NO 100 195 XX" (couldn't see the last two digits). Regardless, that part number doesn't match anything in the 52/52E IPL - but the shape indicates it is a regular 52, when compared to the drawings in said IPL.
He has a huge pic of his points ignition in place on the saw in post#6545. Robin said the same thing up above in post#6552
Kevin