My son and I are starting the rebuild today.
We went on a mini part buying spree last week, and have all sorts of goodies on their way to set this Super straight.
DD and I think it's probably a 1978, and that is very close to the bicycle's former owner's assertion as well.
I'm sure we'll get it all figured out by spring.
That gives me enough time to talk DD into a little drillium for my son's bike.
..and to all of the new Colnago owners coming aboard C&V, please add your bicycle's pic to this thread when you get a chance.