First is my apology for the previous post minus the subject. I was having a problem with several emails when completing the message in body the subject would clear, it was a setting issue (I guess). Either way, I overlooked it and I am sorry.
Now, my question concerns the date of Campagnolo Gran Sport brakes. I am building up a Bianchi and have a choice of brake calipers. One choice is Universals (70s) and Campagnolo G.S. brake calipers, my question is, when did the Campy G.S. brake calipers come out, were there different years, which I am sure there are, and How do you date them? I calipers I have say Campagnolo on one side of the calipers with G.S. on the other side. They have the quick release with a C on the QR lever. I would appreciate any help. Thanks in advance.
Walt Skrzypek
Falls Creek, Pa