If like me you're constantly frustrated by sellers trying to pass Campagnolo items off as C-Record then I figured it might be useful to attempt to state a few facts about what actually are genuine C-Record (Corsa Record) parts.
I am still a relative novice to this myself so please feel free to correct me if I'm wrong.
I understand C-Record to be Record Groupset items produced between 1985 and 1990.
Correct C-Record items include
Crankset - Gen 1 (engraved shield) and Gen 2 (painted shield) 4-arm spider with hidden 5th bolt. Despite being used with early 1980's 8sp Ergo groups this remained a C-Record item.
Headset - Generic Chorus/Record square nut with holes in upper race.
Brake levers - Gen 1 (white hood Cobalto style) and Gen 2 (Aero with Power Grade adjustment)
Brake calipers - SR-style Cobalto with italic script and of course Deltas
Seatpost - Thinner more minimalist single bolt design without flat sides. I've seen these with and without shield and were used with later Record and Chorus groupsets.
Hubs - C-Record was never 8sp cassette, strictly 7 (and possibly
spd freewheel. Low and High Flange (Sherifs Star) Hubs had removable central oil port clip.
Shifters - Strictly DT shifters only, friction and Syncro. There were many designs but I suspect it's fair to say any DT shifters with shields on their blades are C-Record though i know these were also seen on Chorus and Athena equipped bikes.
Front derailleur - There was only one, the gloriously over-engineered and slightly larger unit with the dovetail pivot. came in the band-on version with the 2-point flexible band plus a braze-on version.
Rear derailleur - Gen 1 (no hole in lower cage) and Gen 2 (with hole) i.e.the only Campagnolo rear derailleurs which displayed a shield instead of text though the later 1992 version featured text in an attempt to make it part of the pre-Ergo record group of the year.
With the exception of some C-Record specific pedals, rims, clips etc I think it's fair to say that if items aren't any of the above then they just aint C-Record.
Items that are NOT C-Record based on frequent misconceptions.
Crankset - Chorus, Croce d'Aune, Athena
Headset - Generic Chorus/Record/Athena square nut without holes in upper race.
Brake levers - Athena/Chorus/Record aero levers without Power Grade adjustment.
Brake calipers - Monoplanars, Athena D100 central pivot, gen 2 Super Record (italic script) and all later dual-pivot
Seatpost - The generic flat-sided record/Athena/Chorus unit shield or no shield.
Hubs - Any 8sp cassette hub and any hub without the removable oil port clip plus Chorus & CDA freewheel hubs which also have the oil port.
Shifters - All Ergos plus any shifter that has the text 'Campagnolo'
Front derailleur - Anything that doesn't have the massive dovetail main pivot.
Rear derailleur - Well, all really, there was only the one C-Record design.