Those are the "split-arm" design I described in my original post. I believe those were successors to the original DA side-pulls (there was also the earlier center pull DA). If the original DA/Crane group was introduced in '73, I would have thought the second version would have appeared about 5 or 6 years later, but Paul's '81 date is probably right.
Wayne Bingham Lovettsville VA USA
On Thu, Feb 21, 2008 at 1:36 PM, Norm and Val Lafleur
> All the notes on Dura Ace brakes led me to pull these calipers out my
> parts bin. For many years I used these on my winter beater but now that
> they are retired I'm curious about what vintage they may be. I bought
> them used probably in the early 90's. The reach is long enough to clear
> fenders and the quick release is kind of funky.
> Can anyone ID the date for these? Pictures on Wool Jersey.
> Norm Lafleur
> Ashfield, Ma.