clubman 

My experience with these bikes comes from being an enthusiast and collector but I've never worked in the industry so take everything with a grain of salt.
Lenton was of course a big name for Raleigh in the late 40's and 50's. The original Lenton line morphed into the Clubman and later models became the Gran Sport but the Lenton Sports was kept on in Canada as a 3 speed and later a 5 speed (like the gold example). In the 60's, Raleigh had a few different lines that seem to be exclusive to Canada like the Canadian, the Laurentian, and maybe the even Trent was more common here. Raleigh was the major source of rebadged clones so we also had huge numbers of Eatons Gliders and Canadian Tire Supercycles rolling around. Often these bikes were parts bin specials...bikes with components that weren't fashionable anymore. I've also noticed that the paint and decal designs lagged behind the British models as well. A mid-fifties Sports paint style will show up on a 1960 Raleigh Canadian. With those painted fork tips. Most of the 3 speed sports models eventually morphed into 5 speeds with Huret and Simplex drive trains

As Sixty-Fiver can attest, we've seen a lot Raleigh 3 speeds because of our partial British heritage.