72 360C Enduro

A friend of mine just picked up an 72 360c enduro. I am looking for any info on this model we can find. It appears to have steel wheels(rusty), shift on the right,switch plate on side of frame for off and on road, switch plate on handlebar clamps.What does the C designate? After a few hours checking points and cleaning carb and some fideling we managed to get her running pretty good.It also seems to have some sort of quick change rear wheel.I'm not to familiar with pre 1976 Huskys. I did find a parts book on Halls site but would like to find a manual also. Any help would be appreciated.