Very nice! Very light! Very expensive!
It looks like a Plus-7 Carbone frame, which sold for $900 US in the mid-1980s. Add on components that are mostly Campagnolo's top of the line C-Record and it's top notch. But the original owner must have been a real weight-weenie as he opted for the supelight CLB brakes and the very light (and expensive) Campagnolo freewheel.
I wouldn't want to even hazard a guess at the current value. But it would be big bucks if parted out on Ebay.