Thanks for the info!
One thing I've noticed - on the Campy parts I have handled (admittedly, that's not many), few to none have any part number on them, certainly not the number in the spare parts catalog.
Ok, I get it, the parts are smooth and polished and a piece of art. I do like that, but is there a good spotters guide? I've heard people say that a part "doesn't look like Chorus". My eye isn't so refined yet unless the part has "Chorus" printed on it...