Right before the switch over to C-record a few of the Super Record levers were retrofitted to aero routing. You can see examples on pro rider's bikes from 1985.
Could well have been done by Campagnolo but I would ask some of the more technical guys on here. You could always list them on Ebay with some ridiculously high BIN and see what happens.
Campagnolo did NOT officially make any of these. There were however quite a few sources back in the day for them. Most of them did not work all that well as they had an incredible amount of friction and required the bars to be drilled.