Authentic, not a chinese copy.
Very good condition, only slight paint crimp where the stem was clamped (see numerous threads about it on various forums), no structural problem. Minor scratches from installing shifters on it.
Clip-on compatible, but never used that way.
Went with an aero handlebar instead (!)
Asking $100USD, including shipping from Canada. Add 3% if not paying by PayPal gift.