1) front, 32 hole, NOS, cosmetically A-/B+ as there are shallow scratches to one side of the inner hub. Bought as either Croce D'Aune/Chorus.
2) rear, 32 hole, NOS, 8 speed (not Exa Drive), cosmetically A+: unmarked. Advertised as Chorus, but it has a noticeably duller finish compared to the other two hubs (which are "see your reflection" shiny), so I doubt that is accurate.
3) rear, 32 hole, used, 8 speed Exa Drive, cosmetically A-: no scratches or dings, slight mottling of the finish evident on close inspection, only wear to the spoke holes shows it is used, perhaps built-up but not used on the road, NDS marked "Campagnolo Made In Italy". Bought as Chorus.
I wouldn't know how to ID hubs but as noted above, judging by the mirror finish, 1) and 3) are from higher groups than 2).
Any suggestions in this regard gratefully received, as well as prices.
Thanks in advance of your time and trouble.