You guys already picked all of my favorites:
1st gen C-Record. No name, just the Campy shield and an absurd amount of polishing.
Mavic 851 which looks like something out of a Georges Melier film or steampunk anime.
Huret Jubilee which is probably the most minimalist design ever and apparently still worked well (for the time)
Dura-Ace 7800 which is the best. group. ever.
Black and gold Superb Pro which was light years ahead of the competition when released and might be the best made RD of all time
I'll add two others:
The inanely early 90s Shimano Sante which was kind of poseur-ish back in the day but had 9 speed before Dura Ace and worked well:
And from the same period the Precision Billet Proshift which is emblematic of the same CNC machining fad that resulted in the Paul above.
