Originally Posted by
icemilkcoffee
But you can clearly see brake cable stops along the sloping top tube. I think originally the cable was routed in this Z-routing:

At some point it was changed to the pulley wheel arrangement. Like the other poster said, there is a built in cable stop on that pulley bracket. I see one of these on Ebay:

Doing a Random googley image search didn't help. Zooming in on the few pics of frames that had a pulley they all had a cable stop brazed to the seat tube.
An image from the Ad, appears that a cable stop ferrule (like pictured above) is m.i.a.