Originally Posted by
orcas island
The Campy down tube shifters are of a type I haven't seen before. Instead of having a screw and folding wire that allows the shift lever itself to be tightened by hand, these have a sort of serrated edged knob on the outside. Is this consistent with the Valentino derailleurs?
Yes, those are "Gran Sport" shifters, produced from the early 70s through early 80s:
