Originally Posted by oneclick

That's the Huret Luxe Super Touring, a great rear mech for the times. It had a falling cage, opposite of the rising cages of the Campagnolo/Simplex/almost everyone else's parellelogram designs, and it looked better than the Alvit (same design). Ball-bearing jockey wheels and spec'd for a 30-tooth big sprocket and 27 teeth of wrap.

Their weak points were the non-linear high mechanical advantage required to make it move (hence the extra-long shift levers with larger drums) and the cable-attachment arrangement - it mangles the end of the cable more than enough to make getting the mangled bit through the holes in the washer and bolt worth extra points.