There is some blurry line as to when C Record, (Corsa Record) went away, some of the beginnings of the Record as part of the Ergo Brake-shifter assemblies (hate B-rifter as a contraction) came on stream just prior to the sunset of C Record, havoc regarding cassette compatibility.

I would consider casette hubs, ergo, dual pivot brakes, and the slant parallogram rear derailleur beyond the C Record design period. C Record had some false starts and some noticiable changes in its life, single to double sprung rear mechanisms, Colbalto pinch hitter brakes while the Deltas were revised, what I can see the front derailleur also had changes. The identification evolution... I won't even delve into Syncro...while elegant looking parts and I have some, not a great period for Campagnolo as they were assualted by Shimano.