According to
Peter Kohler's article on the Raleigh Lentons, the Lenton Sports wasn't introduced until 1949. The Raleigh catalog marked 1947-48 only shows the Lenton Clubman, not the Lenton Sports (same page as Clubman shared above). I haven't seen a 1949 catalog, but here are the pages from the 1950 catalog on the Lenton Sports:
