(I'm re-sending this because it didn't go through correctly the first time.)
Pic of the Day 12th June Long-levered Campagnolo cambio Corsa shifter.
Finally found a picture of a professional racer using this shifter! Unidentified rider, unidentified event, but I think it's Mario Fazio at the 1948 Tour de France, with a mechanic examining the long-levered version of the Cambio Corsa. From "But et Club - Numero Special - Tour de France 50", June, 1950.
http://www.birfield.com/
Aldo Ross
Blue Ball, Ohio