Now that I have made the requisite 10 posts in order to post pictures, I can share my two Super Courses: The one I acquired first (almost 20 years ago) was this '74 Mk II. It originally had a Nervar Sport crankset and a Huret Jubilee rear derailleur and shift levers. I used the Jubilee until its 40 year old springs became too tired to shift into the small cog and then replaced it with the Huret Challenger which is what was listed in the catalog for 1974.
Last November I came across a '73 Super Course as a box of parts on Craigslist for a bargain price. I was able to make it mine and built it up with the Nervar Sport crankset (for easier maintenance than cottered cranks) that was originally on my '74 and used the Huret Luxe derailleurs and "Manettes a Grand Levier"
that came on my wife's 1970 Super Course Mixte (she insists on indexed shifting).
The '73 is a slightly different bike to ride than the '74 - the head tube has a shallower angle and the wheelbase is an inch longer.