The Drillium Collection by Jeffrey Rumbold
This is the first-ever attempt at doing my own Drillium - a 1978 Campagnolo Nuovo Record rear derailleur. I still have this derailleur, and, although I did a few rides on it - and Carl rode his similar derailleur for over a year - the small webbing remaining as the parallelogram arms will not hold up to the bending pressure over the long run. How do I know this? Because I was making a fourth one when it broke on me under spring load while putting the cage back together! Oops... Now retired, this has pride of place in my parts museum.