1" quill, positive rise, cable stop for cantis/centerpulls, tigged, Specialized = probably from some late 80's or early 90's MTB/hybridish thing. Probably pretty good stuff, but I doubt it had a model # or anything, it's just an OEM part.

BTW, I would route your R brake cable around the L side of the head tube, you'll have less bend in your housing. And straighten your saddle