Originally Posted by
T-Mar
One early 1980s exception for period correctness are the Shimano AX groups, which introduced the aerodynamic brake lever concept.
One more early 80ies period correctness - If you were in a sponsored team and Campagnolo supplied you with their own (pre C-record) aero handles. Or you could always make your own.
Home made:
Campagnolo made:
Two different solutions (upwards or downwards routing of the cable)