looking at that catalogue page and the list of components I think I will concur with Bertinjim . Its a PS10 .
Has been stripped now to naked frame . Not too rough considering it was pulled from a skip ( by the previous owner )
PAint a bit rough here and there as to be expected . Everything came a part nicely which was a pleasant surprise .Chrome on forks all good as coated in lacquer !
Most of "as found" components will go back as they seem to be correct period etc .
Just have to spend a couple of weeks dismantling , cleaning and polishing all the bits