Those look to be the earliest model of campy ergo shifters from around 1992, all aluminum construction. Later ergo shifters had "CARBON" (plasic) bodies and more grooving cut into the brake levers. The early model shifters didnt really belong to a specific grouppo, the same shifters were sold for use with any of campys deraillers, athena to record. The deraillers look to be athena from same time period, chorus shifters used hex-key retaining nut for the shift cable instead of a regular 6-sided nut.
I would guesse that the frame was a few years older than 1992, perhaps originally outfitted with the shimano parts and then upgraded to campy ergo later. Campy really made a huge competitive leap forward when they introduced their ergo shifters and athena & chorus grouppos around this time. Campys parts offerings from the preceeding few years were a bit behind the tech advances from other competing bike companies and most campy parts were rediciously overpriced. With the introduction of ergo, they suddenly jumped to produced parts that worked even better than shimano and actually offered them at reasonable pricing. There were a lot of racers in the early-mid 90's that upgraded with these campy parts to breath new life into an aging bikes (myself included).