I have a '75 Super Course- it came with 27 x 1 1/4" Weinnman rims laced to Normandy High Flange hubs. I don't believe that Super Courses EVER came with Sew-Ups. I suspect the Wheel sets were exchanged between the two bikes. Check the RetroRaleighs site with their Catalogues for those years; http://www.sheldonbrown.com/retroral...er-course.html

This is almost exactly what my model looks like except for the emerald Green and White paint scheme on mine.