RALEIGH CHOPPER. RALEIGH FACTORY REPORTS including Computer Aided Stress Analysis of a Raleigh 'Ch

RALEIGH CHOPPER. RALEIGH FACTORY REPORTS including Computer Aided Stress Analysis of a Raleigh 'Chopper' cycle frame, May 1971 and others similar, correspondence, factory memoranda, photocopies of designs, several contemporary photographs including Princess Margaret inspecting Raleigh Bicycles in the company of Alan Oakley and blueprints, etc, early 1970s and Alan Oakley's subsequent file of copy letters and correspondence relating to the Oakley/Karen controversy