You are reading a single comment by @smirri and its replies.
Click here to read the full conversation.
-
You're welcome.
Yes, 1994 was the last year of the C-Record era (shield logo, no groupset names on components), although Record (and Chorus) were issued with dual pivot brakes in that year.
I can't help you as to which version your Deltas are: I've never liked them, so haven't bothered to learn anything about them.
Perhaps by a couple of years, but not by much more.
Campag introduced Ergo shifters in 1992 and Shimano were a little earlier.
It would have taken a few years for them to become "standard" and for framebuilders to add those guides.