I'm pretty sure one of my posts is exactly like that one. Mine is a mid to late 80's C-Record. I bought it as part of a grouppo. Too late to check it tonight, too lazy to walk to the garage. Maybe tomorrow.

Didn't Campy get into the habit of introducing a new Record group, and producing the last years Record stuff as Chorus the following year???? Same stuff different boxes?

Edit: I checked, single bolt through from the post side to the saddle.