Steven is correct.
What I thought were two version of Campy's GS Front Derailleur were actually
a GS (on the left) and a Valentino (on the right)
http://www.flickr.com/
Several list members corrected me off list (thanks), below is a summary of the differerences:
GS Valentino ============================================================================ Cage to Push Rod Bolt one on top one in front Body flat around exit of rod reinforced around exit of rod Push Rod Diameter larger Cage Hole for Push Rod larger Cage Chromed dull finish Interchangeability Not Not Year of Production Early Same as start of Record FD Market All economy
Amir Avitzur
R"G Israel