Serotta CSI

Sorry to drift slightly but a word of warning on that stem ... I bought the exact same model NOS from Hillary Stone and that little plastic black bit hiding the bolt, well, it is extremely flimsy and held in place simply by a screw. Tighten that screw too much and the plastic will snap, have it too loose and it rattles. All pictures I've seen of that stem eventually dont include that little plastic bit. Disappointing design fault on an otherwise lovely stem. Be careful with it.

+1
Snapped mine within a few months.